Questions on VS995 vs US996, hardware diagnostics, and ability to root/custom - LG V20 Questions & Answers

I'm expecting delivery of 2 V20s in the next couple of days. These are "refurbs" of the VS995 variety. These are advertised from the seller as "unlocked." I will be using these on Verizon (or MVNO).
I did some basic research before I bought and I was pretty sure I saw info on rooting this model and the ability to do custom ROMS on an unlocked, but I am a little concerned.
I have 3 main questions:
1) I see there is both a VS995 and a US996. I'm having a hard time finding info on the differences spelled out exactly - but it appears that the VS995 is locked to verizon and US996 is unlocked for all GSM. Is this correct? If so, wouldn't an "unlocked" VS995 be equivalent to a US996? If not, what would be different.
2) I want to do a comprehensive check on these phones before I start tinkering to make sure everything works. My last HTC phone had a hidden diagnostics menu which would test everything (battery, compass, gps, sensors, buttons, etc, etc...). I would like to know if the V20 has something similar? Also I want to know what the "problem areas" of V20s are. Things I should check out to make sure they aren't wonky.
3) I need to know if I can root this phone. I've seen a couple methods but I'm not sure now if they apply to my model and if they still work and/or if they are safe (relatively speaking). I definitely need root and would also like to load custom recovery so I can do alternate ROMS, thought I probably will run with stock for a while to get used to it. I would like to upgrade to latest official ROM (for the newest features), but don't want to do any upgrades if it will ruin my chances to root/unlock/etc. What do I need to check on the phone and what is the method I should follow (links are fine for this).

I recently bought a refurb VS995 because I like my original VS995 so much and I am thinking that shortly after the Oreo upgrade comes out, any refurb might come with Oreo and may or may not be easily rootable. (and it is looking very unlikely any phone in the future will come with replaceable batteries) That said, mine came with 15A and I was easily able to roll back to 12A with the 'hacked' LGUP tool and then root it and flash the at-the-time current AlphaRom (now discontinued) without issue. AFAIK *all* current VS995 ROMs can be rolled back to 12A (rootable), up to the latest 1BA. This may or may not change soon (some versions of the V20 CANNOT be rolled back after they take specific updates) The SuperV20 ROM is running the almost up to date version 1AA (with hints of an update coming soon) so you'd be up to date with a close to stock ROM. I will say the rooting process on the V20 is a bit more convoluted than most other phones, which leads to the issue that the rooting threads are nearly incomprehensible anymore-- too many people not following directions, not reading, and complaining about tons of "normal" issues-- static screen (normal after rooting with stock kernel, once the phone boots up fully cover the proximity sensor until the 2nd screen blanks out and then the static will go away-- replace the stock kernel with the mk2000 kernel to fix), phone vibrates on boot after charging (no fix, but will stop the first time it's made to vibrate after booting). I would stay stick to the original rooting thread and READ CAREFULLY. I had issues trying to follow some of the "updated"/new threads where I had issues trying to get the phone to boot properly.
That said, if you do hit a roadblock, DON'T PANIC. The V20 is more resilient than you might think and you can almost always get it back from soft bricking with the LGUP tool (I had to reflash mine 2 or 3 times before I finally got root to stick with the ORIGINAL DirtySanta thread). Basically, the process is flash it back to 12A, use DirtySanta, **boot it once or twice after getting root via DS** (first reboo.t may take a while, with a static screen and vibrating phone, let it sit 10-15 minutes before panicking as it's rebuilding the app cache), then get into TWRP, do a factory reset, flash the new ROM and BTTF kernel, then it should work.
The VS995 has a more limited LTE band selection than the US996. While it can sort of work with other carriers (you'll have to search for instructions/compatibility), the US996 will provide a better experience.
Keep in mind, each version of the phone is SLIGHTLY different, so MAKE SURE you're always using VS995 builds of ROMs/kernerls/recoveries. Apparently you can use US996 ROMs as well but I've never bothered. (you gain a few things, you lose a few things [like wifi calling I think], do your research) Trying to use anything other than VS995 or US996 roms is asking for trouble/limited functionality/soft bricking.
I haven't really used my refurb all that much but it seems mostly fine. The only glitch I see is that the battery seems to drain faster than my original V20 but that might have more to do with the battery condition-- I need to get around to swapping batteries between the phones to see what happens. Given everything else is fine I am very hesitant to return it under warranty. I don't know if there is a way to run a self-test, I would hope there is..!
Good luck, the phone is amazing once you get it tamed...
Links:
Downgrade: the VS995 "all in one" thread has a good video for this. That said I think I had to piece together a working LGUP from a few threads since you need a tweaked DLL file. https://forum.xda-developers.com/v20/how-to/lgv20-vs995-verizon-aio-post-06-19-2017-t3624326 (when I tried to follow the root directions in that link I had issues and had to re-flash 12A and start over, YMMV)
DirtySanta: https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
Once you get a working TWRP from DirtySanta, update it to this one: https://forum.xda-developers.com/v20/development/recovery-twrp-3-2-1-0-t3720239
SuperV20 ROM: https://forum.xda-developers.com/v20/development/rom-superv20-h918-t3764390
mk2000 kernel (I'd use the "back to the future" version of the kernel to start): https://forum.xda-developers.com/v20/development/h918-h910-us996-ucl-mk2000-kernel-t3708330

Buzzy42 said:
Good luck, the phone is amazing once you get it tamed...
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thanks.
Been doing research for the past hour or two and am getting a little bit of a better handle. I've seen the downgrade tutorial and looks solid.
I'm not worried about "convoluted" and the phone seems pretty brick proof so I'm good there.
Just to confirm - if I want root I need to go no later than 13A firmware? My understanding is "firmware" in context of this phone is ROM+Kernel rolled into one.
So if I want root, I can't be on the latest stock ROM (18A), right? Looks like features are all the same - although I do like having the latest security updates, but I guess I will need to forgo those for root?
One other thing I'm looking at is that I prefer to root with Magisk. I've seen a couple threads dealing with this and they recommend to use the "reStock" kernel. My understanding is that you would flash the "reStock" after reverting to the 13A firmware. What I'm trying to understand is if the kernel can be separated from the ROM, could one not flash 18A and then the reStock kernel (which is based on 10b)?
Also, still really interested in the answer to my 2nd question in OP regarding accessing diagnostics for the phone and any problem hardware/screen/etc issues to look out for before I accept this "refurb" as golden.

Yeah, the phone is mostly brickproof and most issues you run into can be solved. If all else fails, just re-roll it back to 12Ain download mode (pull battery, hold down volume, plug in USB cord which will make the phone boot into download mode) and start over. I've seen very little signs of anyone TRULY bricking a V20 who wasn't really trying. (I.e., doing major hacking on it or totally throwing caution to the wind and flashing something they shouldn't have flashed)
You have to downgrade to 12A or 13A to root the phone and get TWRP properly installed the first time, but then you can flash any ROM/recovery you want, so you don't need to worry as much about security patches (just find a ROM that's as up to date as possible). There was AlphaRom up to 1AA which works great (and what both of my V20s are on), Super V20 is being updated but apparently has known issues on the VS995 that the developer has issued a patch for... you might want to skim the various ROM threads to know what works for you. My V20s are both using Magisk.
You can flash kernels and ROMs separately. Some ROMs have a kernel baked in-- I usually boot them once or twice and then re-flash the kernel if I want to. Some ROMs need a kernel flashed separately during the install process. So yeah, you could install an 18A based ROM and then the reStock kernel. (some ROM/kernel combinations work better than others, but you'll have to figure out what you want as some kernels do more than others-- specifically look for KCAL color adjustments, as you can slightly tweak the colors on the screen to help with the screen retention issue the phone has)
The kernel versions and ROM versions are different. I don't fully understand it myself either but AFAIK kernels based on 10b are the latest for the VS995. ROMs based on 1BA would be the latest (they're using hex numbers, so releases go 11A, 12A, 13A.... up to 1AA, 1BA). Some variations of the V20 seem to have more versions of the kernels than the 995 does.

Buzzy42 said:
...
You have to downgrade to 12A or 13A to root the phone and get TWRP properly installed the first time, but then you can flash any ROM/recovery you want, so you don't need to worry as much about security patches (just find a ROM that's as up to date as possible). There was AlphaRom up to 1AA which works great (and what both of my V20s are on), Super V20 is being updated but apparently has known issues on the VS995 that the developer has issued a patch for... you might want to skim the various ROM threads to know what works for you. My V20s are both using Magisk....
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Thanks. I'm wanting to run stock for a while (with Root though) so I can get a feel for how everything is "supposed" to work.
I'm not sure if I will find benefit in the "Second screen", but if I do I would like to find a ROM that supports it.
I've been running latest LineageOS on my HTC M8 for a while now and wouldn't mind sticking with it. However I would like to find some ROMS that are still being actively developed. Honestly I plan to have this phone for at least 2 years so the most up to date stuff I can find now will hopefully future proof me a little from that angle.

TraderJack said:
Thanks. I'm wanting to run stock for a while (with Root though) so I can get a feel for how everything is "supposed" to work.
I'm not sure if I will find benefit in the "Second screen", but if I do I would like to find a ROM that supports it.
I've been running latest LineageOS on my HTC M8 for a while now and wouldn't mind sticking with it. However I would like to find some ROMS that are still being actively developed. Honestly I plan to have this phone for at least 2 years so the most up to date stuff I can find now will hopefully future proof me a little from that angle.
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Yeah, totally understand not wanting to jump in to custom ROMs right away, especially if you're testing a refurbed phone. Flashable truly stock ROMs have been a weakness of the V20, but I think a version of 17A was floating around if you want something a bit newer than the 12A/13A that are rootable. Someone else might be able to help with that. Sadly there isn't a lot of development-- there have been big bursts of activity, then a lot of silence-- which mostly mirrors LG's seeming abandonment of the phone. You should still be able to flash other kernels (restock, mk2000, etc) over whichever rom you run, though. Be careful not to take any official OTA updates because the rooting process installs a debug-bootloader (someone got a hold of an engineering sample of the phone and dumped that phone's bootloader which is what allowed us all to get rooted with an unlocked bootloader) that gets wiped out and leaves the phone in a weird state.
The second screen is really useful once you look at it as a very powerful LED notification light. It takes a while to get used to but I don't know if would want to use a phone without it (or some sort of always-on feature) now. Unfortunately the Lineage ROMs lose a lot of the cooler functionality of this phone due to it having some many weird non-standard functions, but for some people that's not as big of a deal as staying current, so it's whatever your priority is. I am really hoping once the phone gets Oreo (which seems to be "real soon now"..) that we'll still be able to upgrade to it and use that as a base for a while, but keep root/etc..

Buzzy42 said:
...My V20s are both using Magisk....
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Is there a special process to use Magisk instead of SuperSU? My search found some convoluted answers which "required" the reStock kernel to get it working.
I don't know if Magisk has been updated to make it easier...but is there any instructions/link you can forward on how to get rooted with Magisk after I do the 13A downgrade?
Also, it would appear that everything up to 1BA does *not* have anti rollback enabled (ARB=0). Is this correct?
I was told on reddit that you can only root firmware where ARB=0, but clearly this is not the case if you can't root anything past 13A.
Do you have any idea what specifically is the block as to why we can't root past 13A?
thanks

TraderJack said:
Is there a special process to use Magisk instead of SuperSU? My search found some convoluted answers which "required" the reStock kernel to get it working.
I don't know if Magisk has been updated to make it easier...but is there any instructions/link you can forward on how to get rooted with Magisk after I do the 13A downgrade?
Also, it would appear that everything up to 1BA does *not* have anti rollback enabled (ARB=0). Is this correct?
I was told on reddit that you can only root firmware where ARB=0, but clearly this is not the case if you can't root anything past 13A.
Do you have any idea what specifically is the block as to why we can't root past 13A?
thanks
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I'm trying to remember what I did for Magisk. There wasn't anything particularly special. That said, I switched to Magisk when I re-flashed the phone (so I flashed the rom/kernel/Magisk together, in that order I think), I didn't try to just swap between SuperSU and Magisk on a running ROM. Once you get TWRP going you *should* be ok to just remove SuperSU and then reboot into TWRP and flash Magisk. I am on the mk2000 kernel with Magisk so you definitely don't need to be on Restock.
I am not sure if it is possible to do the rooting process without SuperSu and using Magisk instead, if that's what you're asking. I think it'd be safest to use SuperSu and then switch it out later once you're sure you're rooted in the first place.
As for the rollback, there are a few different issues here.
12A/13A have the Android vulnerability which allows DirtySanta to work to root the phone. This was patched after 13A, so DirtySanta can't run and you can't root the phone on a later version of the firmware. If you run anything later than 13A you can't start the rooting process (but you can upgrade your rooted phone past 13A using TWRP to flash an appropriate ROM, but not through the OTA process)
ARB (anti-rollback) prevents you from rolling back to a previous version of the firmware. It has nothing to do with rootable/non-rootable. But it prevents the phone from going back to a rootable firmware on SOME V20s. So far, no firmware on the VS995 has enabled this, so you are safe rolling back to 12A and trying to root with any firmware currently available up to 1BA (definitely 1AA but I have read a few comments that 1BA is still safe). On SOME other models of the V20, ARB *has* been set, which prevents you from rolling back to a previous version of the firmware with ARB=0 (if you try to roll back on a phone with ARB=1 you get an unrecoverable brick.)
So if tomorrow Verizon released a hypothetical update with ARB=1 and you updated, you could no longer roll back to 12A or 13A to root your phone, and you'd be stuck without root unless someone developed a new workaround.
Does that make more sense? Keep in mind that with all of the different versions of the V20, what is appropriate (or even relevant) for one model may not apply at all to another. Thankfully the VS995 still is pretty hackable at this moment. This could all change at any time.

Buzzy42 said:
...12A/13A have the Android vulnerability which allows DirtySanta to work to root the phone. This was patched after 13A, so DirtySanta can't run and you can't root the phone on a later version of the firmware. If you run anything later than 13A you can't start the rooting process (but you can upgrade your rooted phone past 13A using TWRP to flash an appropriate ROM, but not through the OTA process)...
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Hold on.. So are you saying I can flash 13A, then root with Magisk, then upgrade the ROM itself to 18B to get all the latest patches?
If so, I haven't seen any instructions yet for doing that method, but that would be ideal for me for starters until I want to mess around with custom ROMS and Kernels.

TraderJack said:
Hold on.. So are you saying I can flash 13A, then root with Magisk, then upgrade the ROM itself to 18B to get all the latest patches?
If so, I haven't seen any instructions yet for doing that method, but that would be ideal for me for starters until I want to mess around with custom ROMS and Kernels.
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Not quite that simple-- you have to downgrade to 13A if you're not already there when you get the phone.
When you run the DirtySanta rooting process, when it's done, you will end up with a rooted 13A with TWRP and SuperSu. I believe it will have the debug kernel which has a lot of issues, but you can flash any kernel you want at this point (like ReStock to get rid of the static screen you'll see at every boot). That way you'll have a 99% stock (except the ReStock kernel tweaks), rooted, 13A phone.
You can now flash any ROM you want in TWRP. If you want to stay truly stock, I'm not sure what is out there that is flashable, beyond I vaguely remember there was a 17A flashable. You do need to use a repackaged update in TWRP no matter what you want to update to, if you try to just take whatever OTA update the phone offers you (the "software update available" notification pops up and asks you to install while you're using it), you'll lose root and have to do everything over again. This is where you will most likely not be able to get to a truly stock 1BA unless it's floating around.
If I were you, I'd roll it back to 13A, get it rooted (with Supersu), flash the Restock kernel, disable updates (use Titanium Backup to freeze "FOTA Update 7.0") and stay there for a while for testing. If you want to try to switch to Magisk, remove SuperSu and flash Magisk through TWRP. The phone's functionality hasn't changed much/at all. When you're more comfortable, move forward to a ROM based on 1BA.
When you flash a new ROM most will include a kernel or ask you to flash a kernel along with it.
Basically, any updating you do has to go through TWRP. After you get root initially, though, it's really straightforward.

TraderJack said:
I'm expecting delivery of 2 V20s in the next couple of days. These are "refurbs" of the VS995 variety. These are advertised from the seller as "unlocked." I will be using these on Verizon (or MVNO).
I did some basic research before I bought and I was pretty sure I saw info on rooting this model and the ability to do custom ROMS on an unlocked, but I am a little concerned.
I have 3 main questions:
1) I see there is both a VS995 and a US996. I'm having a hard time finding info on the differences spelled out exactly - but it appears that the VS995 is locked to verizon and US996 is unlocked for all GSM. Is this correct? If so, wouldn't an "unlocked" VS995 be equivalent to a US996? If not, what would be different.
2) I want to do a comprehensive check on these phones before I start tinkering to make sure everything works. My last HTC phone had a hidden diagnostics menu which would test everything (battery, compass, gps, sensors, buttons, etc, etc...). I would like to know if the V20 has something similar? Also I want to know what the "problem areas" of V20s are. Things I should check out to make sure they aren't wonky.
3) I need to know if I can root this phone. I've seen a couple methods but I'm not sure now if they apply to my model and if they still work and/or if they are safe (relatively speaking). I definitely need root and would also like to load custom recovery so I can do alternate ROMS, thought I probably will run with stock for a while to get used to it. I would like to upgrade to latest official ROM (for the newest features), but don't want to do any upgrades if it will ruin my chances to root/unlock/etc. What do I need to check on the phone and what is the method I should follow (links are fine for this).
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I found your thread her and on Reddit and was hoping you have found an answer to the hardware check feature you were looking for. I am having radio off issues with my V20 and was hoping to have the phone run a hardware check. It seems that someone posted the code "##22378" to do this but this does nothing for my older sprint v20 and my Verizon model has the MOBO back in a bag of rice. Is this only code?

redsphinx said:
I found your thread her and on Reddit and was hoping you have found an answer to the hardware check feature you were looking for. I am having radio off issues with my V20 and was hoping to have the phone run a hardware check. It seems that someone posted the code "##22378" to do this but this does nothing for my older sprint v20 and my Verizon model has the MOBO back in a bag of rice. Is this only code?
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I had a Verizon V20 (VS995) and these are all the codes I found (from my notes):
Hardware Diagnostics
To run in-built hardware diagnostics use the following phone code:
##228378
Select Device Test > SAAT
Other Diagnostic Menus
##DEBUG
##PROGRAM
##PROGRAM995
##FEATURE
** Service codes for all above should be "000000" **
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I'm pretty sure the ##228378 code was the one that brought up a pretty comprehensive hardware test menu. But, as you know each vendor does their own and this very possibly doesn't work on non-Verizon models. Sorry that's all I got!

Related

Any custom ROMs available yet for the H915 Canadian Version (Freedom Mobile)?

LTE band 66 service and OTA updating is disabled through the DirtySanta root exploit on the stock build when rooted. I was hoping that there would be a ROM or two for the Canadian version of this device. Need something relatively stable, with nightly updates, and with support for AWS 3/Band 66 connectivity
Any leads are are appreciated. Thanks!
Considering the 915 isn't even a supported device no. If someone has gotten the 915 please let me know.
Until FREEDOM Mobile allows the LG V20 LOCKED bootloader to be UNlocked, there will be no FREEDOM to have a custom ROM anytime soon
That is what I got the T-mobile version with the unlockable bootloader which works great on NON-freedom.
lumberguy1028 said:
LTE band 66 service and OTA updating is disabled through the DirtySanta root exploit on the stock build when rooted. I was hoping that there would be a ROM or two for the Canadian version of this device. Need something relatively stable, with nightly updates, and with support for AWS 3/Band 66 connectivity
Any leads are are appreciated. Thanks!
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Well i have a theory about getting root and signal on the 915 but it involves losing recovery afterwards. If anyone wants to discuss it let me know
markbencze said:
Well i have a theory about getting root and signal on the 915 but it involves losing recovery afterwards. If anyone wants to discuss it let me know
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Actually very interested. I have the LGUP tool on Windows with Uppercut drivers installed, so I can unbrick my device even without recovery. Living without a rooted device is causing me extreme stress and trauma.
lumberguy1028 said:
Actually very interested. I have the LGUP tool on Windows with Uppercut drivers installed, so I can unbrick my device even without recovery. Living without a rooted device is causing me extreme stress and trauma.
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Ok so here's my theory.
Basically we can root and have twrp but the problem is that signal ceases to exist afterwards which we assume is caused by the bootloader. Someone posted that they fixed their signal issues using the hidden menu features. But they didn't elaborate if they were rooted at the time and that was the direct reason for losing it in the first place. Nor have they replied. So that part is unknown. It may or may not be an option. The other question I had was is it just wind users who lose signals or does it affect wind devices that are unlocked but being used on other networks like bell, etc.
Anyway those are the unknown things that I'd like some clarification on. But in the meantime here's a theory I have that may or may not work if the above signal fix doesn't work.
So if the above fixing signal doesn't work via that hidden menu then we should be able to confirm the bootloader is the issue. What that means is that we need to have stock bootloader in order for everything to work.
But you cannot have stock bootloader with twrp unless you've "bumped" your recovery which we cannot do.
So my theory was to follow the whole root method and once your phone is booted up with root and twrp you would extract the stock recovery and stock bootloader from the restore file. Then you would flash them via flashfire which I'm told can be done. I'm told that flashing the bootloader does wipe your device which would eliminate root since it's the systemless method. So in theory you'd be back to pure stock again. That's not what we want to have. So we would have to use an alternative root like phh's root method flashed instead of supersu from twrp during the initial root process here. My theory is that you would be restored to stock again but you would have root at least.
So you would at least be able to tinker just not flash stuff. But I believe you can flash a few things from flashfire and still have root for general tinkering or ad block etc.
Of course there is also the possibility that with the locked bootloader (stock) that your phone may not even boot due to new security features in 7.0
But like I said this is just a theory that may or may not work. I haven't had time to try it because I'm constantly busy working and testing themes but if I do ever get time I would consider trying it if we can confirm that we are able to 100% restore to stock. At least with that confirmation we know that if it doesn't work we can get back to how things were.
Hopefully that makes sense.
markbencze said:
Ok so here's my theory.
Basically we can root and have twrp but the problem is that signal ceases to exist afterwards which we assume is caused by the bootloader. Someone posted that they fixed their signal issues using the hidden menu features. But they didn't elaborate if they were rooted at the time and that was the direct reason for losing it in the first place. Nor have they replied. So that part is unknown. It may or may not be an option. The other question I had was is it just wind users who lose signals or does it affect wind devices that are unlocked but being used on other networks like bell, etc.
Anyway those are the unknown things that I'd like some clarification on. But in the meantime here's a theory I have that may or may not work if the above signal fix doesn't work.
So if the above fixing signal doesn't work via that hidden menu then we should be able to confirm the bootloader is the issue. What that means is that we need to have stock bootloader in order for everything to work.
But you cannot have stock bootloader with twrp unless you've "bumped" your recovery which we cannot do.
So my theory was to follow the whole root method and once your phone is booted up with root and twrp you would extract the stock recovery and stock bootloader from the restore file. Then you would flash them via flashfire which I'm told can be done. I'm told that flashing the bootloader does wipe your device which would eliminate root since it's the systemless method. So in theory you'd be back to pure stock again. That's not what we want to have. So we would have to use an alternative root like phh's root method flashed instead of supersu from twrp during the initial root process here. My theory is that you would be restored to stock again but you would have root at least.
So you would at least be able to tinker just not flash stuff. But I believe you can flash a few things from flashfire and still have root for general tinkering or ad block etc.
Of course there is also the possibility that with the locked bootloader (stock) that your phone may not even boot due to new security features in 7.0
But like I said this is just a theory that may or may not work. I haven't had time to try it because I'm constantly busy working and testing themes but if I do ever get time I would consider trying it if we can confirm that we are able to 100% restore to stock. At least with that confirmation we know that if it doesn't work we can get back to how things were.
Hopefully that makes sense.
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Im not sure how much you followed with me but... In my attempts to find a return to stock method i reflashed my stock aboot(bootloader). This bricked me. There is no way to use the stock bootloader once its been replaced that i have found.
me2151 said:
Im not sure how much you followed with me but... In my attempts to find a return to stock method i reflashed my stock aboot(bootloader). This bricked me. There is no way to use the stock bootloader once its been replaced that i have found.
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Thanks for clearing that up. So then my next question was did you attempt that signal fix method and were you using yours on wind or was it an unlocked wind used on another network?
here's the link to this signal fix https://forum.xda-developers.com/showpost.php?p=70328080&postcount=3
and here is a post about someone saying they used it to fix their signal but they wouldn't elaborate on anything else.
https://forum.xda-developers.com/showpost.php?p=70571563&postcount=12
markbencze said:
Thanks for clearing that up. So then my next question was did you attempt that signal fix method and were you using yours on wind or was it an unlocked wind used on another network?
here's the link to this signal fix https://forum.xda-developers.com/showpost.php?p=70328080&postcount=3
and here is a post about someone saying they used it to fix their signal but they wouldn't elaborate on anything else.
https://forum.xda-developers.com/showpost.php?p=70571563&postcount=12
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Lol Im the dirtysanta dev. I have a LS997. Not a 915.
me2151 said:
Lol Im the dirtysanta dev. I have a LS997. Not a 915.
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Well I knew you had worked on ds. I wasn't sure however if you had a 915 or not. So then at this point it seems that if that signal fix is in fact valid that it is the only method to get things operational and I would presume it's a stretch given the user who posted about it doesn't seem to have any credibility to go by.
markbencze said:
Well I knew you had worked on ds. I wasn't sure however if you had a 915 or not. So then at this point it seems that if that signal fix is in fact valid that it is the only method to get things operational and I would presume it's a stretch given the user who posted about it doesn't seem to have any credibility to go by.
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Thanks for this. Yeah DirtySanta may have been developed for LS997, but it seems to work on H915 minus the modem issue.
lumberguy1028 said:
Thanks for this. Yeah DirtySanta may have been developed for LS997, but it seems to work on H915 minus the modem issue.
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Correct but it's useless to use since the phone doesn't function properly afterwards. If there was a confirmed way to have data and signal working then that would be great but there is nothing confirmed to work yet.
I've just moved to a V20 from a Note 4. All my Note4 ROMS were T-Mobile versions. I believe Rogers/Fido phones are basically the same as T-Mobile, which uses freq. channel 66 as well.
Has anyone tried a T-Mobile (918) ROM on the 915 yet? Might just work...
no root yet for freedom????/
whats the method
whats the method to root the lg h915
diehard2013 said:
no root yet for freedom????/
Click to expand...
Click to collapse
The 'Freedom' name becomes a bit ironic for the LG V20 H915 variant it seems. Not a lot of freedom when one can't unlock and root it. Just got one the other day as somehow my Note 4 stopped functioning as a phone, after a couple of months of fun running through loads of Lineage and other nightlies. Loved that phone, but I'll come to love the V20 I'm sure. Already like it a lot. But root seems essential. I haven't had an unrooted phone for more than a few hours in years. Adaway and just general user control of the file system seems essential. Getting rid of bloatware and such. I mean... I disabled a lot of that nonsense, but it's still there, existing in MY phone, which makes me mad. I want to dump a few custom notification sounds into root directories but can't. It's frustrating. So yeah, commenting to subscribe, and hoping a developer with a V20 in Canada decides to get excited enough to remedy the situation, whenever that becomes possible. Otherwise it seems I'll just have to get used to the odd ad and the other limitations.
GerardSamija said:
The 'Freedom' name becomes a bit ironic for the LG V20 H915 variant it seems. Not a lot of freedom when one can't unlock and root it. Just got one the other day as somehow my Note 4 stopped functioning as a phone, after a couple of months of fun running through loads of Lineage and other nightlies. Loved that phone, but I'll come to love the V20 I'm sure. Already like it a lot. But root seems essential. I haven't had an unrooted phone for more than a few hours in years. Adaway and just general user control of the file system seems essential. Getting rid of bloatware and such. I mean... I disabled a lot of that nonsense, but it's still there, existing in MY phone, which makes me mad. I want to dump a few custom notification sounds into root directories but can't. It's frustrating. So yeah, commenting to subscribe, and hoping a developer with a V20 in Canada decides to get excited enough to remedy the situation, whenever that becomes possible. Otherwise it seems I'll just have to get used to the odd ad and the other limitations.
Click to expand...
Click to collapse
Why Wouldent you just use the secret # in the hidden menu to change bands to get signial. Also you could try searching for exsisting bands that are near by, this dont require the hidden menu.
Sent from my [device_name] using XDA-Developers Legacy app
Not understanding what you are suggesting. I tried lots of hidden menu options to get the SIM recognized in the Note 4, but it appears the slot died on that phone. It just won't be a phone any more, no matter which ROM i flash.
If you mean the LG V20 I'm even more puzzled. How would changing hands help with rooting the phone?
GerardSamija said:
Not understanding what you are suggesting. I tried lots of hidden menu options to get the SIM recognized in the Note 4, but it appears the slot died on that phone. It just won't be a phone any more, no matter which ROM i flash.
If you mean the LG V20 I'm even more puzzled. How would changing hands help with rooting the phone?
Click to expand...
Click to collapse
Oops my bad i was sleeping while i read that. You can fix your sim card reader just use a soder tool. Also there maybe a root for this phone but i don't think it is safe enough yet.
Sent from my [device_name] using XDA-Developers Legacy app

Sprint V20 In-Store Restore Question

I have successfully rooted my Spring LG V20 using DirtySanta and it seems to be working for the most part, but I'm not really impressed with the benefits of rooting at this point. What's even more disappointing was the lack of a method for reverting to stock. My question is--can I bring this in to a Sprint store and ask them to restore it to stock? I checked fastboot for oem status and everything reads false. I don't have SuperSU or any other root apps installed on the phone. The only thing that shows up is the damn red triange every time I boot. Anyone have any experience with this? I don't really want to get in trouble for rooting, but I'd really like to get back to factory stock. Doesn't look like we'll be getting a restore method any time soon either, correct? Thanks in advance...
I don't think there is a revert method (inside or outside the store). I know it's after the fact, but on your next device, you may want to figure out exactly what you'd want to do with root before you go through with it. I typically only do it for TB backup purposes and XPOSED, but I've found that I can back up in other ways, and I dig stock enough not to risk rooting. I don't knock you for rooting (there are plenty of good reasons to), this is just my advice going forward. In the meantime, you should look around XDA, you may find your golden goose app that you can leverage root for. Good luck.
bgibson72 said:
I have successfully rooted my Spring LG V20 using DirtySanta and it seems to be working for the most part, but I'm not really impressed with the benefits of rooting at this point. What's even more disappointing was the lack of a method for reverting to stock. My question is--can I bring this in to a Sprint store and ask them to restore it to stock? I checked fastboot for oem status and everything reads false. I don't have SuperSU or any other root apps installed on the phone. The only thing that shows up is the damn red triange every time I boot. Anyone have any experience with this? I don't really want to get in trouble for rooting, but I'd really like to get back to factory stock. Doesn't look like we'll be getting a restore method any time soon either, correct? Thanks in advance...
Click to expand...
Click to collapse
hey sorry to hear that your having issues,
but you and the other poster are correct, sprint never released a restore file that wasn't encrypted.
And to my knowledge the repair centers would not be able to fix this issues, and sadly lg would more then likely deny a
warranty claim as this was modifications done by the end user.
A good chance in the future that we will get the files needed or a process to revert back to stock, but currently there is no SAFE method to try, and pushing the stock aboot and system.img back to the device WILL hard brick the device.. @me2151 attempted the restore process once, and failed, so please be careful as you may have issues.. The red warning triangle is due to your aboot "bootloader" being swapped for the debug version and will never go away, unless we get a dev willing to risk his device for a .png swap of the warning RED img. Other wise its there forever.
The static on boot up can be removed using a custom kernel but be aware it WILL break things in return. Typically update to prl and profile
fm radio, comfort view and a few other little things..
Hey, thanks for the reply. I can deal with the red warning screen, I just get a little anxious when I can't use the touchscreen or my cellular data gets hosed. As long as there are fixes here (which there have been--thanks to all) and I can use my phone, we're good. I figured if someone could break encryption on government files then why would an encrypted KDZ file be such a challenge? At any rate, I appreciate the help. I'll just keep my fingers crossed for a PNG swap!

Relocking bootloader

Hey guys.
Really sorry for having to post this again :/
Tried posting my issue in this thread but I think that thread's gone cold.
----
I have a Moto G5 Plus US, Model XT1687
Current ROM Info:
Software channel: retus
Build #: NPN 25.137-33
Security patch: Jan, 1 2017
Baseband: M8953_02.03.07.06R POTTER_NA_CUST
On a whim, unlocked the bootloader. Now id like to lock it back.
I haven't updated my phone / installed any OTA's, phone keeps asking to update to NPNS25.137-33-5, haven't done it.
Does this procedure work for me?
Which ROM should I use?
Id like to relock the bootloader and receive OTA updates as normal on my US variant phone!
Many thanks!
I'm pretty sure Motorola hasn't released stock firmware for the retus version.
Cats_PJs said:
I'm pretty sure Motorola hasn't released stock firmware for the retus version.
Click to expand...
Click to collapse
So, there's no way for me to relock my bootloader unless motorola releases it?
Can't I use another firmware that's available here at XDA?
What would you do?
Not update OTA and wait for motorola to release the firmware, or should just leave it unlocked?
Thanks
seed_87 said:
So, there's no way for me to relock my bootloader unless motorola releases it?
Can't I use another firmware that's available here at XDA?
What would you do?
Not update OTA and wait for motorola to release the firmware, or should just leave it unlocked?
Thanks
Click to expand...
Click to collapse
I don't think there's a way to relock the retus version, but maybe I'm wrong.
As far as what I would do. I always run a custom ROM, so I'd flash twrp, make a backup and try a few roms..
seed_87 said:
So, there's no way for me to relock my bootloader unless motorola releases it?
Can't I use another firmware that's available here at XDA?
What would you do?
Not update OTA and wait for motorola to release the firmware, or should just leave it unlocked?
Thanks
Click to expand...
Click to collapse
To relock the phone, you must flash a complete factory image that is the same or newer than what you have installed... Only way, not that it gains much except the ability to pass SafetyNet checks on pure stock, which you can do with some root magic anyway, but the bootloader will change to a state of 2 (Relocked), your warranty will still be void, and you will still get the bootloader unlocked warning screen (unless you flash a custom logo).
Cats_PJs said:
I don't think there's a way to relock the retus version, but maybe I'm wrong.
As far as what I would do. I always run a custom ROM, so I'd flash twrp, make a backup and try a few roms..
Click to expand...
Click to collapse
Well, I originally wanted to just root the stock ROM and install a couple of things like: Adaway, some Xposed modules (Like the Youtube ad remover one), WiFi ADB (which requires root, allows one to wirelessly debug apks)
acejavelin said:
To relock the phone, you must flash a complete factory image that is the same or newer than what you have installed... Only way, not that it gains much except the ability to pass SafetyNet checks on pure stock, which you can do with some root magic anyway, but the bootloader will change to a state of 2 (Relocked), your warranty will still be void, and you will still get the bootloader unlocked warning screen (unless you flash a custom logo).
Click to expand...
Click to collapse
Wow relocking the BL sounds really useless once you realize what you're getting from it. I really don't care much for SafetyNet as (this model has no NFC). I don't use Android Pay either.
Honestly, I unlocked the BL but finally didn't root mainly because I read some issues when rooting. Please see this post
Thanks for the enlightenment!
seed_87 said:
Well, I originally wanted to just root the stock ROM and install a couple of things like: Adaway, some Xposed modules (Like the Youtube ad remover one), WiFi ADB (which requires root, allows one to wirelessly debug apks)
Wow relocking the BL sounds really useless once you realize what you're getting from it. I really don't care much for SafetyNet as (this model has no NFC). I don't use Android Pay either.
Honestly, I unlocked the BL but finally didn't root mainly because I read some issues when rooting. Please see this post
Thanks for the enlightenment!
Click to expand...
Click to collapse
If you do decide to root, I would suggest using magisk instead of SuperSU. I switched a few months ago, and it works perfectly
Safetynet isn't just for nfc, other companies and apps have used it in their software as well ie: Snapchat, and Pokemon go are 2 I can think off the bat.
Installing and/or rooting with magisk is fairly easy and painless, and it will have superSU which will give you root.
How to:
Must have twrp recovery, or some other custom recovery, although these days I would recommend twrp, as it works and is more widely used than say cm recovery is, since cm project was taken over by lineage now. Anyways, flash a custom recovery and use it. (note: I haven't used cm recovery or any other recovery in years, so I do not know it this works with antyhing else, aside from twrp, which I know it works fine with). There are also tutorials all over xda on how to install/flash twrp, as well as youtube videos if you prefer that better.
Go grab magisk.zip, (do a google search or look on xda, it's all over the place just do a search for like magisk zip, you'll find it).
The latest as of right now I think is 14.0 and you will also (if I recall correctly) need magisk manager, (and just like the zip file you can do a quick search it's also all over the place).
Once you have that, reboot into recovery, then flash the magisk.zip file, and reboot, it should give you magisk manager app in your app drawer and you should be rooted. (Note: You may need to update magisk manager.)
To check root grab an app called root checker on the plays store. (it's free)
It's that easy.
Short summary:
1: Install custom recovery (if you haven't already)
2: Boot to recovery, flash magisk.zip
3: reboot to system, and profit from root + safetynet hide.
Quick and painless root method.
I do all my rooting now this way, in fact I recently re-flashed my nexus 5x rom and instead of flashing superSU I flashed the magisk way instead, and it cover 2 things,
1: gives you root
2: it hides root from safetynet and lets you use nfc, pokemon go, snapchat, and other apps that use safetynet as well.
Cats_PJs said:
If you do decide to root, I would suggest using magisk instead of SuperSU. I switched a few months ago, and it works perfectly
Click to expand...
Click to collapse
Oh, wow, I had the (wrong) idea that the SuperSU method was the better one and superseeded magisk. If that works great then awesome I will root using magisk, thanks @Cats_PJs !
easyrider77 said:
Safetynet isn't just for nfc, other companies and apps have used it in their software as well ie: Snapchat, and Pokemon go are 2 I can think off the bat.
Installing and/or rooting with magisk is fairly easy and painless, and it will have superSU which will give you root.
How to:
Must have twrp recovery, or some other custom recovery, although these days I would recommend twrp, as it works and is more widely used than say cm recovery is, since cm project was taken over by lineage now. Anyways, flash a custom recovery and use it. (note: I haven't used cm recovery or any other recovery in years, so I do not know it this works with antyhing else, aside from twrp, which I know it works fine with). There are also tutorials all over xda on how to install/flash twrp, as well as youtube videos if you prefer that better.
Go grab magisk.zip, (do a google search or look on xda, it's all over the place just do a search for like magisk zip, you'll find it).
The latest as of right now I think is 14.0 and you will also (if I recall correctly) need magisk manager, (and just like the zip file you can do a quick search it's also all over the place).
Once you have that, reboot into recovery, then flash the magisk.zip file, and reboot, it should give you magisk manager app in your app drawer and you should be rooted. (Note: You may need to update magisk manager.)
To check root grab an app called root checker on the plays store. (it's free)
It's that easy.
Short summary:
1: Install custom recovery (if you haven't already)
2: Boot to recovery, flash magisk.zip
3: reboot to system, and profit from root + safetynet hide.
Quick and painless root method.
I do all my rooting now this way, in fact I recently re-flashed my nexus 5x rom and instead of flashing superSU I flashed the magisk way instead, and it cover 2 things,
1: gives you root
2: it hides root from safetynet and lets you use nfc, pokemon go, snapchat, and other apps that use safetynet as well.
Click to expand...
Click to collapse
Awesome explanation @easyrider77 I will definitely try to root using magisk. Thanks for the warning, don't play Pokemon go and haven't used Snapchat in years so i'm good! I'll try flashing the latest Magisk (v14.0)
One thing tho:
I think I want to (for now anyways) stay stock-ish (stock rom + stock kernel + twrp + magisk).
If I understand it correctly, flashing a custom recovery renders the phone unable to get OTA's (Not that I'd want to apply an OTA update on a modified rooted phone and risk a brick anyways) So, how would one eventually update Android? (Keeping in mind that Motorola hasn't released any retus firmware) Can I flash other non-retus firmwares? (Which wouldn't flash over twrp I think, I would then just loose root and have to flash magisk again, right?)
Thanks a ton guys :good::good::good:
EDIT:
Short xda search pointed me to this official TWRP link, will follow fastboot method to install TWRP.
I'm not sure what exactly stops ota from coming in. I've heard unlocking the bootloader is what causes it, and I've also heard that flashing a custom recovery is what causes it, and I've also heard a custom rom is what does it.
There are options as far as ota goes though, and work the same way, but you'd jsut have to wait. People release flashable ota files all the time, and can be flashed via twrp.
If you want to keep stock, and root that's fine too, but I personally wouldn't worry much about the ota issue at all, because eventually every phone will not get ota as it will lose support, but you can still get the latest and greatest up to date rom with it's features.
Prime examples would be:
Oneplus One,
Oneplus 3
some of the samsung devices like s4
These are just a few, and although they don't receive support officially, they are sporting the brand new android 8 oreo.
Even the samsung s4 has N for it and it came out in 2013 (that's near 5 yrs ago now) and started on Android 4.2.2 (Jelly Bean) and said it was upgradable to 5.0.1 (Lollipop), and now here we are running android 7.1.x.
https://forum.xda-developers.com/galaxy-s4-tmobile/development
(not sure if there were any unlocked variants of that phone at the time as it wasn't a common thing like it is now, that's why I chose the tmobile thread but there are other variants that get it as well)
So when it comes to ota, I personally would not an do not worry about that when I root, that's the last of my worries.
I prefer functionality and customization over ota myself, because most times someone comes out with either an official link to an ota or makes an flashable ota you can flash via twrp, although my semi-educated guess would be if you decide to install the official/stock ota, then it will erase everything you have anyways which can be a pain.
DO keep in mind once you unlock the bootloader, it "officially" voids any warranty and moto does have the option to refuse service if anything goes wrong with the phone, but I have heard some people had no issues and moto took the phone back even when rooted, but that is something you would have to make a choice and live with IF you decided to unlock the bootloader, as there is no way to undo that process.
I have re-locked the bootloader on a moto phone so yes it CAN be re-locked, but........it still gets triggered and moto will know that it's been unlocked even if you re-lock it, because that part is irreversible and cannot be undone, aside from you locking and unlocking it on your side.
As for flashing firmware and all that, make DOUBLY sure you know your phones model number and/or codename, this is key in flashing most anything you do with your phone, because even though a phone may have multiple variants, ie: tmobile, sprint, at&t versions, and even European versions, and the phones are identical in EVERY way hardware wise, you can't just simply pick a rom of choice and use it, it's a matter of knowing what your phones info is.
Example: you cannot take a t-mobile phone rom and flash it's official firmware or it's roms, and updates on a at&t variant, or a metroPCS on a tmobile variant, even though they use the same network, and are the exact same phone and hardware, there are subtle differences and can most likely brick the phone, either hard or soft.
So if I had the US variant of the g5 plus that would be codenamed the same "potter" like the rest, but, the number is different which is XT1687, so I would use that number as my reference, as apposed to the potter name, because there are 3 other variants of that phone which are Amazon Edition and the consumer cellular and of corse the European variants as well, I'm not exactly sure what numbers go with what phones other than the US unlocked variant, but on a quick look the other numbers are XT1684 and XT1685, perhaps someone else with more experience than I have can tell you what those number match up with said phone.
As far as the US variant goes though, I do not want to take a rom or firmware meant for the XT1684 XT1685 and use it on the XT1687 US variant, as it will most likely have bad results, ie: brick of some sort.
That's the main thing you have to worry about, other than that, there isn't much worry. Just do some major research and goggling and read and re-read and read again the directions on the threads at xda as most generally all of them are pretty simple to follow, if you do it step by step.
I recently bought an lg k20 plus phone from metroPCS, have never rooted that phone before and came to xda and followed the rooting thread and rooted it the first time. In a matter of 30 mins I had full root with stock rom (since there are no roms for that phone as of yet) but it is a metroPCS variant, (mp260) and in the case above, this phone is also sold by tmobile, is the exact same phones specs hardware, etc....I could not use the tmobile rom or firmware on this phone.
Hope this helps clear it up some.
Update:
I just bought a 64gb storage/4gb ram US variant of the g5 plus. It brought back some older memories of when I had my other moto, X I think it was, not sure anymore, but I DO remember you can unlock the bootloader as well as re-lock it, but, do keep in mind it still triggers something internally that can't be reveresed, so if moto did decide to check into things, they can tell if it's been bootloader unlocked.
So while you can unlock and lock the bootloader on our side, moto can still tell it's been unlocked, even when re-locked. Just hope if you send it back in they just don't check it and even if they do, hope they don't bother sending it back saying your warranty is void sorry.
Thanks @easyrider77
I used to install custom ROMs on my older phones. Recently though, stock android has gotten pretty good so maybe when this phone loses support I'll try some ROMs. Out of curiosity, what ROM/hacks/kernel do you use?
So, how does this sound:
- Install the OTA my phone's been prompting me to update to (upgrading from NPN25.137-33 to NPNS25.137-33-5 and I think it will then try to update to NPN25.137-83 with an August 1 security patch)
- Install TWRP via fastboot, make a nandroid backup!
- Root with Magisk v14.0
- Looking into maybe changing the boot.img "Your device is not trustworthy" thing
- Adaway! Xposed! Other goodies yay!
- Any other recommendations?
PS: Can Magisk root every firmware released by Motorola for the Moto G5+?
I've used it on my nexus 5x, and a lg k20 plus phone to root. I'm not sure if it has any limits when it comes to phones, but to my knowledge it should work fine.
Be careful with the boot.img file, if its not the correct size it will brick the phone too.
easyrider77 said:
I've used it on my nexus 5x, and a lg k20 plus phone to root. I'm not sure if it has any limits when it comes to phones, but to my knowledge it should work fine.
Be careful with the boot.img file, if its not the correct size it will brick the phone too.
Click to expand...
Click to collapse
WIll do, many thanks for all your help guys!
@easyrider77 @Cats_PJs @acejavelin
:good::good::good:
Every rom I've tried on this phone works well, with only minor bugs. Right now I'm using the Pixel ROM. Elemental x is my kernel of choice because it's stable and has a sound option to increase volume. I use Kernel Adiutor for settings. The viper magisk module by ahrion works great, and ad away is a must. Good luck
Cats_PJs said:
Every rom I've tried on this phone works well, with only minor bugs. Right now I'm using the Pixel ROM. Elemental x is my kernel of choice because it's stable and has a sound option to increase volume. I use Kernel Adiutor for settings. The viper magisk module by ahrion works great, and ad away is a must. Good luck
Click to expand...
Click to collapse
Nice to hear cat.
I'm holding off on rooting just yet, although the temptation is really really great and pulling at me right now ina bad way . I just want to make doubly sure the phone isn't going to have issues, and hardware glitches. Anytime you mass produce a product, inevitably there will always be a bad batch(s) so I am just watching and waiting patiently on stock non-root (yes I said non-root LOL) but it's not as bad of an experience as I thought it would be.
I have to give this phone props, this phone is simply great. I bought the 64gb storage/4gb ram US variant, and have been nothing but happy with it, even on stock.
Camera isn't exactly your top tier phone camera but it certainly stands out as one of the not bad at all cameras. I see many saying the camera sucks, well if your zooming in and expect to get a good picture, good luck with that, simply put as I read in an article, two things 1: just don't use zoom, it's a digital zoom as apposed to an optical zoom, and simply will give you fuzzy and blurry pics a alot 2: if your after a good picture taking experience, for crimeny sake, buy a dang camera, these are phones people, NOT cameras. If they were meant for that, photographers around the world would be using phones, but guess what, news flash, they are using things called "cameras" wow what a concept LOL.
Anyways, if you just use very little zoom (I'd say 1.5 - 2.0x at most) but mostly just get closer to the subject or item you are takeing pics of, you'll have a much more pleasant experience with picture taking, trust me.
Ok of my soap box and tangent, sorry .
I will eventually root this bad boy, as I cannot resist the urge. For now I am just making sure the phone has no hiccups or glitches hardware wise, so glad to know roms are working well.
I did have a question about the sound though. I see people saying low sound volume with this phone, and I personally do not see (or hear in this case) the problems. I watched a few youtube videos last night and honestly I had to turn it down some because it was plenty loud, at least from this side.
Does the sound get lower with roms? (in wich case I can use viper) but I'm just curious.
easyrider77 said:
Nice to hear cat.
I'm holding off on rooting just yet, although the temptation is really really great and pulling at me right now ina bad way . I just want to make doubly sure the phone isn't going to have issues, and hardware glitches. Anytime you mass produce a product, inevitably there will always be a bad batch(s) so I am just watching and waiting patiently on stock non-root (yes I said non-root LOL) but it's not as bad of an experience as I thought it would be.
I have to give this phone props, this phone is simply great. I bought the 64gb storage/4gb ram US variant, and have been nothing but happy with it, even on stock.
Camera isn't exactly your top tier phone camera but it certainly stands out as one of the not bad at all cameras. I see many saying the camera sucks, well if your zooming in and expect to get a good picture, good luck with that, simply put as I read in an article, two things 1: just don't use zoom, it's a digital zoom as apposed to an optical zoom, and simply will give you fuzzy and blurry pics a alot 2: if your after a good picture taking experience, for crimeny sake, buy a dang camera, these are phones people, NOT cameras. If they were meant for that, photographers around the world would be using phones, but guess what, news flash, they are using things called "cameras" wow what a concept LOL.
Anyways, if you just use very little zoom (I'd say 1.5 - 2.0x at most) but mostly just get closer to the subject or item you are takeing pics of, you'll have a much more pleasant experience with picture taking, trust me.
Ok of my soap box and tangent, sorry .
I will eventually root this bad boy, as I cannot resist the urge. For now I am just making sure the phone has no hiccups or glitches hardware wise, so glad to know roms are working well.
I did have a question about the sound though. I see people saying low sound volume with this phone, and I personally do not see (or hear in this case) the problems. I watched a few youtube videos last night and honestly I had to turn it down some because it was plenty loud, at least from this side.
Does the sound get lower with roms? (in wich case I can use viper) but I'm just curious.
Click to expand...
Click to collapse
I really don't have a problem with the sound volume, except when I plug it into my truck. If there's a good song on, and I really want to crank it up, I run out of volume, so I usually turn up the headphone gain in the kernel settings by 3.
I haven't noticed variance between ROM volumes on this phone, but I know on my old note 3 there was definitely fairly large variance between ROMs.

OK3: any modifications at all possible?

Hello,
A few months ago, I was able to successfully root my AT&T S4 (SGH-I337, builld LRX22C.I337UCSGOK3) using KingRoot. The KNOX warranty bit was not set at the conclusion of the root process.
After wrestling with storage problems, including the "system memory" taking up 6.29 GB out of the meager 16 GB that is on this phone (preventing practically any Google Play updates from occurring, as the available space would always dip below 500 MB periodically), as well as performance problems (very long delays for some touch events and a general resentment of TouchWiz), I decided that enough was enough, and I decided to change my ROM/OS out for LineageOS.
LineageOS offers builds for jfltexx, which is reported to work for jflteatt since they are similar enough. I am not really willing to try "older" builds, as one of my goals is also to bring the security of the operating system up to date, so I am not exactly inclined to go for old CyanogenMod builds. The LineageOS install guide stipulates that I install TWRP to successfully install the OS via a supported recovery; however, the message SECURE MAGICCODE FAIL: recovery appears, as the upgrade process seems to be expecting something signed by Samsung (right?). Other guides warn that the stock recovery only allows stock OS installation and not custom operating systems, so I decided not to try that route. This effectively prevents me from installing LineageOS due to a problem that is inherent in OK3.
Why did I make the mistake to install OK3? More than a year ago, I decided to do the final update that AT&T pushed out for this phone. Thinking that it would be something significant, I went for it, only to find out months later that it was a minor update whose purpose was also to add an additional lock to the bootloader. As this phone is "fairly old" (is 2013 already considered ancient times?), I have not found many guides that cover OK3, and those that do pertain to either rooting the S4 (already done) or something about downgrading (but I can't really do that, seemingly due to the OK3 lock-in). Oops.
That said, is there any hope to bring more life out of my phone, or is it time to throw the phone out and buy a Pixel or related product like any typical consumerist would do? My goal is to move to another OS to end the storage problems and other quirks of this phone that I have grown to deplore; that is all I wish to attain.
The phone is relatively reliable: it had ~1200 hours of uptime before I had to reboot it a few days ago to fix a data connectivity problem. The battery is also very manageable and can last a day and a half in regular use, but it can last 2-3 days under maximum power-saving mode.
I have read the rules and done some research on this forum, among some others. Thank you for your assistance.
Upgrading the phone to 4.3 locked the boot loader which prevents the installation of TWRP.
audit13 said:
Upgrading the phone to 4.3 locked the boot loader which prevents the installation of TWRP.
Click to expand...
Click to collapse
I see; so I was already screwed when I had OK2?
oldmud0 said:
I see; so I was already screwed when I had OK2?
Click to expand...
Click to collapse
Yes, anything past MDL has the bootloader flaw patched. MDL firmware and below have a flaw in the bootloader that allows loki doki to be installed bypassing the bootloader lock so you can install TWRP recovery and custom AOSP ROMs.
Since you're on OK3, you're forced to use safe strap recovery and can only install custom touchwiz ROMs like golden eye and albe95.
If you want to read up on the MDL bootloader, I have written a guide here: https://forum.xda-developers.com/galaxy-s4-att/general/how-to-one-guide-to-mdl-bootloader-t3584122
My wish is to escape TouchWiz, so I suppose I have hit a dead end.
Thank you for your help anyway.
oldmud0 said:
My wish is to escape TouchWiz, so I suppose I have hit a dead end.
Thank you for your help anyway.
Click to expand...
Click to collapse
If you want away from touch wiz, I think there's a Google play edition ROM for the galaxy s4 that you can use with OK3, but I am not too sure. I would just check the galaxy s4 ROM section for it. I'm on the MDL bootloader which allows me to use TWRP, so I don't know too much about safe strap recovery.
Even if one wanted to do a TouchWiz-based ROM, I don't think we on OK2/OK3 even have the option to install SafeStrap, so far as I can gather
Hold the phone, I think I've found something. Evidently we can Odin back down to NB1 and go from there! Experiments, here we come.
Yes, NB1 is as far back you can go I believe without bricking your phone.

Root SM-J337A Samsung Galaxy Express Prime 3 (2018) Via Magisk Method

EDIT 3: It appears this device has a locked bootloader, which means that twrp wont work, and that device tree was a waste of time... I guess I'll just wait until someone or Samsung releases the firmware for Magisk.
EDIT 2: I have successfully built a device tree for this device using TWRPBuilder's script on github. Although it might not be fully complete, it is still a start. Note: I built using an android 8 release. Does the boardconfig.mk file still work for android 9????
I plan on comparing it with a different device tree to make sure nothing is blatantly wrong with it, but I'm not a developer so I don't know if that will help.
(Anyone willing to help me? If I could efficiently navigate the linux CLI I would probably be much faster...)
My current plan is to build TWRP for this device to back up the ROM so that I can use Magisk.
https://github.com/TwrpBuilder/twrpbuilder_tree_generator/blob/master/README.md
Link to device tree builder for those interested. Dont even ask how long it took me to realize I had to add the commands to the end of the java executive instead of typing TWRPBuilder -r recovery.img. command.
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EDIT: To those that read, Samsung has restrictions against downgrading apparently. Currently, the only way for root is by waiting for someone to share the official stock ROM. The first half of this method about getting the firmware Does Not Work I don't know about the rest...
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Hello everyone,
I would first like to say that I think this is a working method, but I want to double check with someone who has rooted before.
I have the above mentioned phone, and after a ton of research, have determined a path to rooting it through Magisk. I'm currently running Android Pie 9, on the latest stock firmware from att.
This phone does not have A/B partitioning, but has system-as-root and it will require a copy (and Magisk patched) ROM to root.
One of the main problems I have is not having the latest firmware for my device. (Don't tell me to look it up. Its non-existent on the web) I have found that Samsung's Smart Switch will allow you to obtain the official ROM.
However, to download the ROM, I have to have an outdated phone. The most recent update for my phone was to upgrade from Android 8.0 to 9.0.
I assume such an upgrade requires the whole ROM to be downloaded.
Is it possible to use an outdated ROM for my phone (Yes, I have one for android 8) and downgrade my OS so that I can then update from Smart Switch and get a copy of the current firmware to use with Magisk?
Edit: apparently Samsung has protections against downgrading. I tried samfirm but to no avail.
Anyone know of any compatible custom ROMs?
Will keep trying to root though...
I know many people will immediately say yes, but this phone is different.
There is no OEM unlock in Developer options (read more about this further!), and there is no fastboot. There is no TWRP for this phone either (some older threads on Magisk mentioned TWRP, so I am confused if I need it for rooting via Magisk)
I have discovered, that if you were to hold HOME + POWER + UP, on powerup, you can get to a warning about installing custom OSes and an option to continue.
I pressed continue.
Someone on the web said pressing up will wipe the phone, since it unlocks the bootloader.
My phone did not get wiped.
Is my phone's bootloader/OEM unlocked?
I want to know because I Think Magisk requires an unlocked bootloader.
If Magisk doesn't, I'm all good, and I am glad I can install custom OSes (not my goal, but will do if desperate)
If it does require it, I believe my hone already has an unlocked bootloader/OEM
One last note, does downgrading trip anything? I have no warranty, but I know there are other protections (like KNOX) that could affect the outcome.
(I've heard downgrading won't change anything)
Is there anything I need to turn off?
To Recap:
Downgrade OS
Update via Smart Switch to get stock ROM
Use Magisk to root my phone.
I'm simply asking if everything will turn out OK.
(Sorry for the exceedingly long post)
Thanks.
I don't have this phone but I wanted to have one, but after I realized there is no method to unlock it, you are out of luck I also have a phone laying around (Zte Avid Plus with android lolipop), I built a ROM and recovery for it but I realized there is no method to unlock the bootloader. The only method is to get your hands on the bootloader from this device and try and modify it and pray that it works. That is just how a lot budget devices are built nowadays. And that's sad. The thing is that there was a successor to the Zte Avid with the same specs but it ran Android Oreo. Meanwhile the Avid ran Lolipop. A method from manufacturers to always force us to buy new phones.

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