Does anyone know how to go back to marshmallow from oreo? - Nexus 6P Q&A, Help & Troubleshooting

I purchased my nexus 6p last week through ebay. It was running well, but the battery life was not what I expected. It had locked bootloader, so there is no problem because of rooting or installing custom roms. I didn't know about the bootloop issue before purchasing this phone. I read battery life degraded after nougat update. I'm currently on oreo and I tried installing the stock marshmallow image from google but I get a device has became corrupt error, I just want to observe if the battery life becomes better after I install marshmallow. I can live with the old version if I can use it more than being on the latest version. Any help would be appreciated as I want to use this phone as a daily driver.

AmeyDude said:
I purchased my nexus 6p last week through ebay. It was running well, but the battery life was not what I expected. It had locked bootloader, so there is no problem because of rooting or installing custom roms. I didn't know about the bootloop issue before purchasing this phone. I read battery life degraded after nougat update. I'm currently on oreo and I tried installing the stock marshmallow image from google but I get a device has became corrupt error, I just want to observe if the battery life becomes better after I install marshmallow. I can live with the old version if I can use it more than being on the latest version. Any help would be appreciated as I want to use this phone as a daily driver.
Click to expand...
Click to collapse
To flash stock Google ROM you have to have an unlocked bootloader. If the message you are referring to appears like the image below, it is normal with unlocked bootloader. The battery on these phones are notoriously awful with age (3 hours or less SOT) , marshmallow or not. If you want to use phone as your regular device I'd have the battery replaced.

Aimless Rambler said:
To flash stock Google ROM you have to have an unlocked bootloader. If the message you are referring to appears like the image below, it is normal with unlocked bootloader. The battery on these phones are notoriously awful with age (3 hours or less SOT) , marshmallow or not. If you want to use phone as your regular device I'd have the battery replaced.
Click to expand...
Click to collapse
The message I get says " Your device is corrupt and it may not function properly." It's quite difficult to replace the battery at my place, so I'd first like to try a workaround.

AmeyDude said:
The message I get says " Your device is corrupt and it may not function properly." It's quite difficult to replace the battery at my place, so I'd first like to try a workaround.
Click to expand...
Click to collapse
You may want to go through the guide below.
https://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928

Just flash stock marshmallow on it. There are plenty of guides here. Unlock bootloader, install adb bridge, instal the nexus 6p adb drivers, and flash the stock firmware. Im also noticing battery life decreased so ill be going back to M too and test it out

Related

[Q] Help rooting an unusual VS980 and solve battery not charging

Hi all.
I got my hands on an LG G2 from verizon which used to be a display model, the problem is it won't charge beyond 38%, it displays a message about the charger not being compatible. So far I've used several chargers with no results
I'd like to know if rooting it and flashing a custom rom would get rid of this message and allow it to charge beyond that cap.
Soon I'll have the official charger anyway.
The second problem I found is that this phone has a different software version than a normal G2, in the end it has a "_DU" so ioroot will not root it as it will not recognize the software version name. This weird software version seems to be for the purpose of downloading an enabling a product showcase animation for using it on display at verizon stores, this animation is downloaded automatically after every factory reset, so it's very annoying, but it can be uninstalled nevertheless. My guess is this "DU" stands for display unit or something similar.
What I'm thinking could solve this problem is flashing an official firmware in download mode (to get rid of the _DU) and then try to root it in the normal way. Later I pretend to install cyanogenmod to see if the charging problem is gone.
Do you guys think this will work? I'm worried this prompt is not related to the rom, but the kernel itself, so uninstalling the stock rom would not work at all. Also, I don't know if it is possible to flash an official firmware just to get rid of the one with de "DU" in the end. I have very little experience with this device in particular.
Otherwise the phone is fully functional in every aspect, so I think this software version is indeed only meant to load the showcase animation. The current Sofware version it has says exactly "VS98011A_DU"
Thanks in advance.
Mr. Dildo said:
Hi all.
I got my hands on an LG G2 from verizon which used to be a display model, the problem is it won't charge beyond 38%, it displays a message about the charger not being compatible. So far I've used several chargers with no results
I'd like to know if rooting it and flashing a custom rom would get rid of this message and allow it to charge beyond that cap.
Soon I'll have the official charger anyway.
The second problem I found is that this phone has a different software version than a normal G2, in the end it has a "_DU" so ioroot will not root it as it will not recognize the software version name. This weird software version seems to be for the purpose of downloading an enabling a product showcase animation for using it on display at verizon stores, this animation is downloaded automatically after every factory reset, so it's very annoying, but it can be uninstalled nevertheless. My guess is this "DU" stands for display unit or something similar.
What I'm thinking could solve this problem is flashing an official firmware in download mode (to get rid of the _DU) and then try to root it in the normal way. Later I pretend to install cyanogenmod to see if the charging problem is gone.
Do you guys think this will work? I'm worried this prompt is not related to the rom, but the kernel itself, so uninstalling the stock rom would not work at all. Also, I don't know if it is possible to flash an official firmware just to get rid of the one with de "DU" in the end. I have very little experience with this device in particular.
Otherwise the phone is fully functional in every aspect, so I think this software version is indeed only meant to load the showcase animation. The current Sofware version it has says exactly "VS98011A_DU"
Thanks in advance.
Click to expand...
Click to collapse
Hey, what happened with the phone ?! Did you manage to root it and fix the battery problem, because i got the same phone, same problem and there is absolutely no info about it...
Probably you bought mr dildo's phone.....
_____________________________Write less read more and be smart

Successful Recovery Note7 from last Samsung "Death Update" Disabled Battery Charging!

Successful Recovery Note7 from last Samsung "Death Update" Disabled Battery Charging!
Ok, so here it goes, Im getting one more piece of Note7, addictive, I know... this piece has latest samsung's "Death Update" installed, thus its reportedly only working while plugged in with usb cable or charger but otherwise does not charge battery anywhere beyond 0%... so thats that.
My goal is to root this unit, and install custom rom (like hydra rom) and after probably reflash with ODIN with earlier version that did not have battery charging @ 0% cap , then again root the phone, install root package blocking program and just run stock rooted rom with updates disabled, thus having battery charging feature enabled. Ultimately my options of course are to attempt retrofit another battery to it like one discussed here in this thread:
https://forum.xda-developers.com/note-7/themes/note7-battery-swap-mod-note5-s6-s7e-t3545371
, since the model Im receiving has no warranty and it is already refunded unit to the original owner but was "written off" by samsung or whatever you call it, I dont care as long as I get it, I know me trading it in for S7e even aint an option so its going to be my test-unit for DIY and such.
Im wondering would charging features still be disabled if phone was powered via Download / Recovery modes? Anybody had first hand experience? Otherwise, is there anything else in place after the latest death update that prevents phone from being rooted and alternatively flashed with custom recovery/rom to enable charging?
Mega curious...
Hope ya'll having great weekend people
Mr.Ultimate said:
Ok, so here it goes, Im getting one more piece of Note7, addictive, I know... this piece has latest samsung's "Death Update" installed, thus its reportedly only working while plugged in with usb cable or charger but otherwise does not charge battery anywhere beyond 0%... so thats that.
My goal is to root this unit, and install custom rom (like hydra rom) and after probably reflash with ODIN with earlier version that did not have battery charging @ 0% cap , then again root the phone, install root package blocking program and just run stock rooted rom with updates disabled, thus having battery charging feature enabled. Ultimately my options of course are to attempt retrofit another battery to it like one discussed here in this thread:
https://forum.xda-developers.com/note-7/themes/note7-battery-swap-mod-note5-s6-s7e-t3545371
, since the model Im receiving has no warranty and it is already refunded unit to the original owner but was "written off" by samsung or whatever you call it, I dont care as long as I get it, I know me trading it in for S7e even aint an option so its going to be my test-unit for DIY and such.
Im wondering would charging features still be disabled if phone was powered via Download / Recovery modes? Anybody had first hand experience? Otherwise, is there anything else in place after the latest death update that prevents phone from being rooted and alternatively flashed with custom recovery/rom to enable charging?
Mega curious...
Hope ya'll having great weekend people
Click to expand...
Click to collapse
Not sure why you think that retrofitting a battery would allow the device to charge. The update on your device is what is preventing the charge cycle and also is stopping the device from using any radios.
You need to try to flash via Odin a complete rom, probably the last version that had the battery limited.
If you can manage this then you should be disable oem unlock under developer options and then install hydra by following the detailed instructions.
clearbox said:
Not sure why you think that retrofitting a battery would allow the device to charge. The update on your device is what is preventing the charge cycle and also is stopping the device from using any radios.
You need to try to flash via Odin a complete rom, probably the last version that had the battery limited.
If you can manage this then you should be disable oem unlock under developer options and then install hydra by following the detailed instructions.
Click to expand...
Click to collapse
Battery retrofitting mod is not to get battery charging - is to keep note7 fail-proof, and with this specific unit that Im talking about it is especially the case only after getting it back to firmware that did not have it bricked.
I know about "OEM unlock" feature in dev mode is a must before any software tampering, so thats not an issue. I am aware phone works while on cable, so I should be able to navigate and activate OEM Unlock from dev menu, also I should be able to do straight ODIN flash with firmware that is of an earlier version without any battery cap's , so my question still remains - is there anything in this latest deadly update from samsung that prevents ODIN from flashing anything to the phone, or is it just charging orientated?
we shall all see once it comes across, should be following week, Im actually eager to start working with it. May as well just go ahead and order myself a S7 battery too so less time to waste waiting
I have a Note 7 that's on the "Death update".
1) Phone cannot be charge in normal mode or download mode.
2) I did not check on whether it could still function with a cable plug in.
3) Attempting to flash older Samsung firmware from ODIN will not work. It will give some errors and stop there.
4) Could not flash anything through ODIN. BL, CSC, CP, AP could not be flash into the phone.
5) Could not flash recovery from ODIN either.
6) Enabling OEM unlock doesn't help in anything. See point 3 and 4 above.
Hope the above helps.
teslapolaris said:
I have a Note 7 that's on the "Death update".
1) Phone cannot be charge in normal mode or download mode.
2) I did not check on whether it could still function with a cable plug in.
3) Attempting to flash older Samsung firmware from ODIN will not work. It will give some errors and stop there.
4) Could not flash anything through ODIN. BL, CSC, CP, AP could not be flash into the phone.
5) Could not flash recovery from ODIN either.
6) Enabling OEM unlock doesn't help in anything. See point 3 and 4 above.
Hope the above helps.
Click to expand...
Click to collapse
Vey well, I have some extra ideas too, we shall see
Besides, what are your current plans for your note7?
are you willing to sell it by any chance?
Mr.Ultimate said:
Besides, what are your current plans for your note7?
are you willing to sell it by any chance?
Click to expand...
Click to collapse
I'm hoping to revive the Note 7 and use it if this is possible at all.
Won't mind selling if there are no other option.
Ok, so got my disabled charging note7, it has about 24% battery remaining and it stays this way if I keep it plugged in on USB or on wireless charger.
I tried flashing TWRP both versions available, both had flashed OK with ODIN however, it still has standard recovery...? wtf...
I remember my S7edge did have very similar behavior, odin would flash TWRP just perfectly fine but when going in to recovery on the phone it still starts in standard recovery, and this would continue until I flashed CF-Autoroot IMG.TAR file , but this time I cannot find it anywhere for note7....
Im thinking trying KingoRoot or OneClickRoot tools but I wanna hold back a little before I launch on those.
Ok good news (so far) , flashed custom kernel via ODIN, worked, but now I figured phone takes charge again while phone is off just on USB, so charge disable mode is within latest kernel update only.
I can still enter my standard recovery and do all I want there (havent tried factory reset yet!)
When powered off from recovery, phone began charging! now I have noticed it went from 23% to 24% and it is showing it is charging, where as before it would vibrate for second when plugged in and then show battery symbol which soon after would go offline and phone would be unresponsive like it is not plugged in - in not charging state. So for now 1:0 me vs note7
EDIT!
YESSS! IT IS CHARGING! NOW @ 26%!!!
Now @ 30% ... ok I should let it charge to 50% and then try perform more firmware DIY
ok, I will confess, I could not wait any longer, thought screw this sh*t, went in to recovery and wiped cache/factory reset, rebooted phone, then witness phone startup OK, welcome wizard started OK with 30% on battery and indicator on shows On-charge thought "yess!!!" , then I get this notification about battery is gonna run out and no longer recharge blah blah blah, but hey , it still charges and now Im at 33%
Yes, latest firmware and custom kernel and VIOLA , note7 is back in the game!
Also got this notification from device security thing asking me to reboot phone to try undo the changes... I guess I will not try just yet out of curiosity will try again to do TWRP reflash, this time it should work
Confirmed, now TWRP flash via ODIN worked liek a charm, so I should root via TWRP now and see if I can disable something in current latest software to disable these notifications playing around now
ok now rooted and lots knox stuff disabled with package disabler and etc, still getting this one notification about discharging battery warning when plugged in, anyone could advice me which file to edit in system root to bypass this?
Thanks
Wow, that's great. I've been trying for weeks but unable to get through to anything. Will it be possible to share on how you get to flash TWRP successfully? Thanks
---------- Post added at 12:36 AM ---------- Previous post was at 12:32 AM ----------
Mr.Ultimate said:
ok now rooted and lots knox stuff disabled with package disabler and etc, still getting this one notification about discharging battery warning when plugged in, anyone could advice me which file to edit in system root to bypass this?
Thanks
Click to expand...
Click to collapse
I'm don't know about the editing stuff but if you could get TWRP to work, wouldn't it be simpler to flash custom ROM that already have KNOX etc disabled?
I was disabling all kind of random packages just to see what results will I get from doing it all , was expecting to somehow find package that relates to USB/wireless pad power circuit monitoring so I could work on it while maintaining the latest patched firmware but no nagging popups every time phone is powered on or plugged in to USB/wireles pad. Otherwise I observe phone is 99.99% perfect aside from the notification that I have described and security centre prompts warning time to time that device has been modified , click restart to undo-modification, which I actually tried and it undone-nothing, so it is permanently patched this way regardless what you try to do within the phone now.
I am in favor of keeping stock rom and stock appearance of note7 as much as possible.... dont know if it makes much sense but I love the way note7 is... with all functions working as much as possible as close to standard as much as possible, so thats why my reasoning trying to make this latest rom work.
I have few firmwares which were the original ones V.1 and V.2 but not V.3, which is what I have, so even if I install custom rom now, there is no way going back to factory firmware since V.3 full factory rom is nowhere to be found.
I am going to look in to ways on how to extract entire current firmware so I can go and learn a bit and maybe do few ROM builds myself, this is actually exciting now once I got this far.
Able to link me to the custom Kernel that you use?
teslapolaris said:
Able to link me to the custom Kernel that you use?
Click to expand...
Click to collapse
do it on your own risk folks, I mean - enjoy...
https://www.androidfilehost.com/?w=files&flid=98347
Mr.Ultimate said:
do it on your own risk folks, I mean - enjoy...
https://www.androidfilehost.com/?w=files&flid=98347
Click to expand...
Click to collapse
Thanks. It works!!!. Thank you so much.
I managed to flash TWRP and Hydra ROM onto it. Everything works except mobile network. Somehow it is unable to detect the SIM card.
Will fiddle with it further. Hopefully I could get it up and running.
Thanks again.
only downside I see so far with current latest kill firmware and this patched kernel are those nagging notifications regardless battery charging to 100% ok, security center notification about modifications and about restart with attempt undoing them, which obviously will fail anyway anytime, and just now noticed it takes a little more time to activate wifi to show available networks, usually its instant, like 0.1second, and now its like 3-5 second delay once switch is toggled to ON position. Also, found out that when network sim card inserted, now phone prompts for network customization and asks to restart now or later to apply settings changes, and I tried restarting but this keeps coming on anyway, so finding the service package and disabling it solves this issue.
Besides no any network issues here, signal comes on every time I change sim cards around and all connectivity is there with data and all is OK, maybe try different kernel? I tried one with APO ,mine is European exynos SM-N930F model
I tried out Hydra kernel but it didn't work. Then I found this https://forum.xda-developers.com/note-7/how-to/spacex7-rom-kernel-kill-galaxy-note7-t3536693. I flash it and my SIM card works again.
This may help someone
Hi.
As I've read that there are people in the forum with problems after the last update from samsung, I decided to write my experience.
My first Note 7 was the Hong Kong version. It was amazing, because it had an fm radio built in, but of corse I couldn't flsh a costum rom on it, as there as none in the forum. In time, a gave up and send it to samsung, and I am glad for, since by now, I would have a death phone.
Anyway, after 2 months with a s7 edge, I found a person selling is international note 7, cause he would go to Brasil, and was afraid to had it apprehended at the aeroport. So I bought it, even with the limited charge at 60% problem.
First, I tried the Dr. Keatan rom, but the limited battery charge still persisted.
So I tried the TEKXodus rom, and I say its amazing.
My phone now as the batery charging to 100%, and even the shealth works fine, if you don't update it.
If it as an automatic update by google, just downgrad it and is fine.
When I received the samsung notification for the last update, I just needed to be sure that the update function was turn off, that the processes in the background were off too, and, with titanium backup, to freeze 2 "urgent update" apks.
Everything works fine.
So, for those who have problems, I recommend the TEKXodus rom.
Best regards

GS5 verizon 4.4.4 to rooted marshmallow

I have a Verizon GS5 that has been towelrooted on 4.4.4 for close to 2 years. It's worked ok, but I've started seeing various issues that required a factory reset. Since I'm back to no settings, I was thinking updating the OS would be a good idea. I would like to move to either Lollipop or Mashmallow but it looks like the latter may be a problem with my phone (CID 11 and Verizon) while keeping Knox 0x0.
I'm having a problem following the guide that I've found here:
https://www.androidinfotech.com/2016/07/root-samsung-galaxy-s5-sm-g900v-verizon.html
The issue is that I can't get the phone to connect to my PC for Kies or ODIN. It fails to load the MTP driver for my GS5 but works fine with my wife's GS5. Hers is stock Lollipop or Marshmallow and mine is still on JB but is rooted.
I guess what I'm wondering is what my options are. Should I remove root so that I can hopefully connect to the PC to transfer the files over and updating? Or, is there something else I should try first? I haven't worked on many phones and I'm a little nervous about doing something irreversible at this point. I don't know that I need Knox at 0x0, but since I can't get back if I trip it, I'd rather not trip it.
bkenobi69 said:
The issue is that I can't get the phone to connect to my PC for Kies or ODIN. It fails to load the MTP driver for my GS5 but works fine with my wife's GS5. Hers is stock Lollipop or Marshmallow and mine is still on JB but is rooted.
I guess what I'm wondering is what my options are. Should I remove root so that I can hopefully connect to the PC to transfer the files over and updating? Or, is there something else I should try first? I haven't worked on many phones and I'm a little nervous about doing something irreversible at this point. I don't know that I need Knox at 0x0, but since I can't get back if I trip it, I'd rather not trip it.
Click to expand...
Click to collapse
Try to dial *#0808# in the stock phone application.
You should see a menu with several options.
Select "MTP+ADB" under USB settings and press "OK".
Then you'll be able to connect your phone via MTP or ADB to your PC.
If there's no menu, then (assuming you're rooted) open a good file browser (ES, Root Explorer or something) and open the file /efs/carrier/HiddenMenu (it's a simple text file) and replace OFF with ON there.
Save the changes and reboot the phone.
Now the menu should be operational.
Unfortunately, I already tried to update to 6.0.1 so this very helpful info is a little to late.
I followed all directions on the linked page above but didn't get things working. I repeated 2 or 3 times now and I'm clearly missing something. I can get through installing busybox, but then when I reset, it hangs at the samsung screen and just vibrates 3 times repeatedly. I'm going to have to figure this out tonight as I don't really have a backup phone.
bkenobi69 said:
Unfortunately, I already tried to update to 6.0.1 so this very helpful info is a little to late.
I followed all directions on the linked page above but didn't get things working. I repeated 2 or 3 times now and I'm clearly missing something. I can get through installing busybox, but then when I reset, it hangs at the samsung screen and just vibrates 3 times repeatedly. I'm going to have to figure this out tonight as I don't really have a backup phone.
Click to expand...
Click to collapse
Currently root is impossible for MM on G900V CID11.
Impossible means you cannot gain it now, most likely it's forever.
There's no internet site which can help.
You must choose: root on LP or unrooted MM.
You must decide if you want a stock ROM or something (TW-based) else too.
It's a good idea to flash and use a stock firmware for the time while you're thinking.
Interesting... I guess I must have been reading things wrong because I thought I could go to MM with root. I'll try going to Lollipop then but first I'm going to just flash back to JB 4.4.4.
I downloaded 4.4.4 from Samsung and was going to write it with Odin, but it says FAIL when I try to flash. I suspect I just tripped Knox...
SW REV CHECK FAIL : [aboot]Fused 2 > Binary 1
I'll look around to find a guide, but if you have a suggestion, I'd certainly listen!
bkenobi69 said:
SW REV CHECK FAIL : [aboot]Fused 2 > Binary 1
Click to expand...
Click to collapse
This means that you've upgraded your phone's firmware while experimenting.
Now you cannot directly flash 4.4.4 with Odin, you're limited to 5.0 (BOK3) and above.
Ok. I'll read the guides on the head of this list and see if I can find the right information.
FWIW, I was following the same how-to that most of the stickies point to and say is safe. I wonder how I got to a position that I'm in now when I did the same as recommended. Painiac's thread points to the same thing I did:
https://forum.xda-developers.com/ve...al/guide-painiacs-essential-guide-to-t3319848
I think I may have tried to flash a MM stock rom though when it got into a boot loop. I suspect that would be the issue.
Bootloop is not a problem in this case.
Just reboot to the recovery and perform a factory reset from there.
The phone will boot but the first boot will take 10-15 min.
bkenobi69 said:
I have a Verizon GS5 that has been towelrooted on 4.4.4 for close to 2 years. It's worked ok, but I've started seeing various issues that required a factory reset. Since I'm back to no settings, I was thinking updating the OS would be a good idea. I would like to move to either Lollipop or Mashmallow but it looks like the latter may be a problem with my phone (CID 11 and Verizon) while keeping Knox 0x0.
I'm having a problem following the guide that I've found here:
https://www.androidinfotech.com/2016/07/root-samsung-galaxy-s5-sm-g900v-verizon.html
The issue is that I can't get the phone to connect to my PC for Kies or ODIN. It fails to load the MTP driver for my GS5 but works fine with my wife's GS5. Hers is stock Lollipop or Marshmallow and mine is still on JB but is rooted.
I guess what I'm wondering is what my options are. Should I remove root so that I can hopefully connect to the PC to transfer the files over and updating? Or, is there something else I should try first? I haven't worked on many phones and I'm a little nervous about doing something irreversible at this point. I don't know that I need Knox at 0x0, but since I can't get back if I trip it, I'd rather not trip it.
Click to expand...
Click to collapse
Marshmallow can not be rooted on CID 11 devices. The Samsung drivers are found here: https://www.samsung.com/us/support/owners/product/galaxy-s5-verizon You can follow the 5.0 root guide here: https://forum.xda-developers.com/ve.../testers-required-easier-root-method-t3561529 to downgrade to 5.0. If you want to downgrade past that to a version lower than 5.0, you will still have to follow that guide then follow the instructions here (I recommend you to follow the root guide for 5.0 above then skip steps 1 and 2 on this page): https://forum.xda-developers.com/ve.../guide-downgrade-to-kk-nk2-ncg-mm-lp-t3686858 . You can find stock firmwares here: https://forum.xda-developers.com/showthread.php?t=2784880 (stock firmware, kernel, and modem files) and if you get bootlooped or bricked, just reflash the combination file from the root guide. If you want to root 4.4.4, follow the downgrade method using all of the NK2 files but the flash the NGC kernel, run through the setup, then use towelroot and flash the NK2 kernel after that. If you ever get stuck on the red Verizon screen, just pop the battery out and reboot.
That's about all anyone can do and a run down of everything.
Thank you for posting specific guides. I'll go back to step 1 and try again. The primary issue I have at this point isn't reading the guide and following directions, its finding the right guide to reduce the number of images I need to download. I'm on 1.5mbps DSL so d/l a 2GB file takes most of a day. I have several that don't appear useful at this point which means I've lost several days.
bkenobi69 said:
Thank you for posting specific guides. I'll go back to step 1 and try again. The primary issue I have at this point isn't reading the guide and following directions, its finding the right guide to reduce the number of images I need to download. I'm on 1.5mbps DSL so d/l a 2GB file takes most of a day. I have several that don't appear useful at this point which means I've lost several days.
Click to expand...
Click to collapse
Understandable, I can't believe it is 2018 and we still haven't invented a way to compress 1.7GB into 1.7MB archives to make life easy on low connections. How is battery life on 4.4.4 and which update of 4.4.4 are you on? I've been having an issue with my phone dropping a percent every 2 minutes on 5.0/6.0. It would be nice find a version to root along with excellent battery life.
The reason I was looking at updating was due to battery issues. I had the phone for around a week before I rooted it (a couple years ago). After rooting, I started seeing immediate battery issues. My wife has the same unrooted phone (currently on MM) and has never had the type of issues I have. I figured the issue was likely a bad kernel and was thinking I'd just update to something newer (LL or MM) to help. I assume a new battery would help since mine is 1-2 years old, but I swapped with my wife's phone and she still gets lots better performance. Once I get this back up, I'll probably buy a new battery for each phone.
So it appears that I must have upgraded the bootloader to a point where towelroot no longer works as was previously suggested. I believe then that I need to follow the second guide to be able to downgrade to a rootable Lollipop version:
https://forum.xda-developers.com/ve.../guide-downgrade-to-kk-nk2-ncg-mm-lp-t3686858
I am downloading the PB1 rom and lolliroot and need to also get a system restore, kernel, and modem. As I said, my connection is terrible so it would be great if someone could suggest which version of restore I should go with. I was going to install Lollipop in the end (that was the original goal). I figured I'd just get OC4 since it's likely to have the least bugs and best performance. If that is a mistake and I should go with an earlier version of LL PLEASE throw it out there!
Ok, I tethered to my wife's phone and am burning her data (shhhh, don't tell her).
I grabbed all of the OC4 files, the PB1 rom, and lolliroot. I think I have everything I need so long as OC4 is a good place to end up.
bkenobi69 said:
The reason I was looking at updating was due to battery issues. I had the phone for around a week before I rooted it (a couple years ago). After rooting, I started seeing immediate battery issues. My wife has the same unrooted phone (currently on MM) and has never had the type of issues I have. I figured the issue was likely a bad kernel and was thinking I'd just update to something newer (LL or MM) to help. I assume a new battery would help since mine is 1-2 years old, but I swapped with my wife's phone and she still gets lots better performance. Once I get this back up, I'll probably buy a new battery for each phone.
So it appears that I must have upgraded the bootloader to a point where towelroot no longer works as was previously suggested. I believe then that I need to follow the second guide to be able to downgrade to a rootable Lollipop version:
https://forum.xda-developers.com/ve.../guide-downgrade-to-kk-nk2-ncg-mm-lp-t3686858
I am downloading the PB1 rom and lolliroot and need to also get a system restore, kernel, and modem. As I said, my connection is terrible so it would be great if someone could suggest which version of restore I should go with. I was going to install Lollipop in the end (that was the original goal). I figured I'd just get OC4 since it's likely to have the least bugs and best performance. If that is a mistake and I should go with an earlier version of LL PLEASE throw it out there!
Click to expand...
Click to collapse
Here are some files (that I been hunting for about an hour for). Just gonna reference this for future use and anyone who comes across this thread. http://rootjunkysdl.com/files/?dir=Galaxy S5
Nice find!
I have the phone up and running on stock PB1 currently. I'm going to let it sit to see what the battery is like prior to rooting. While I haven't gotten it hooked back up to my account yet nor do I have it rooted, I feel pretty confident now that I'm on the right track. Thanks!
Just to finish out this topic, I have not successfully completed attaining root on 5.0. I flashed PB1 to the phone and then followed this guide for installing KingRoot:
https://androidforums.com/threads/root-question.1120150/
I got the lolliroot files from here:
https://www.androidfilehost.com/?fid=312968873555011514
Thanks to all who offered help!
Qyuck question... I've got my phone working well bow, but there's one issue with apps I'm not sure how to address. I want to use Verizon Visual Voicemail but I can't find it on the Play store. I disabled updates so I wouldn't get the marshmallow update and break root. but, with updates turned off, VVM won't get pushed. Any suggestions?

Noob looking for pointers to help with upgrade process

Hi. Been waiting a while to post this, and playing around based on what I see, but I the last change I made to my phone hasn't worked out too well and I don't think I have enough of a grip on the process. I am an ex-computer 3rd level tech support so I have reasonable skills around computers etc.
I bought an Axon 7 (A2017G) in Germany but it got flooded one day when it went down the toilet pan, literally. So I replaced it with a 128 Gb model from China, not really thinking about the software versions. Of course it came with A2017, and more importantly, no ability got OTA upgrades from Android 6.
So recently I've been having some battery life issues so I've changed the battery.
Following guides here, I've managed to get it onto a newer A2017 version and it has taken an OTA upgrade to Android 7. The build number is B13. The boot loader is still unlocked. But it's not very stable and Google Play service has now stopped, and I can't be doing with the unreliability. And tbh although it worked, I can't remember exactly which guide or what steps I followed to do it.
So I want to put it onto a stock G version, which I think seems to be possible, based on stuff I've read here. I don't think I need root going forwards (once this is done) and I'm looking for the simplest method. Unfortunately, due to the length of time it's been live, this forum really is information-overload and I've been reading for two days now and made loads of notes but I'm not really very clear about what I need to do.
I'm quite happy to find and read the right guides but would be really grateful if someone could take a few minutes to just tell me exactly which bits are essential to be upgraded and what steps I do need to follow. If I am confused I can come back with any queries.
I'd be happy to root the phone if it's felt that is a really useful thing but I'm not really a "power user" and I'm OK with standard.
Also I'm assuming any upgrade would receive any future Android releases OTA (if there are any for this phone), but if not that's not too vital.
Thanks in advance...
Geoff
But regarding your situation: You have an A2017 with A2017G firmware, right? Can you tell us your firmware version?
Would you be fine with Chinese firmware (MiFavor 5.2, B17) or prefer stock+ (G B01/B02, U B12)?
Thanks for the quick response, really appreciated.
The firmware is still A2017 version AFAIK, but I don't know where to check. If I go to the boot loader screen it says ZTE/P996A03_N/ailsa_ii and on the next line 7.1.1/NMF26V/20170912.013327
I'm thinking I'd do the change from A2017 to A2017G to get round the annoying junk which came with the Chinese version, and also avoid the Google Play Services problem I came across. It may not be do-able but I thought I'd read it was.
I guess in addition to telling me the steps, telling me exactly which file versions to use would help a lot. I promise to keep notes!
I don't mind which firmware, so long as it works reliably and so long as I can preferably put a G version on it.
of course it's doable, the thing is that you'll need to unlock the bootloader in order to.
If you had trouble with Play Services then it's most probably on chinese firmware, finding out would be as easy as going to Settings, then About phone
The boot loader is still unlocked from when I managed to do the previous upgrade. That took me quite some hours, and it was more by luck than judgement that I got a result. This time I want to better understand what I'm doing.
Not sure what I'm looking at for the firmware, isn't it the versions I quoted above? But the menus (mostly) are in Chinese at start up, and I had to load Google Play and Play Services from the ZTEYR store so I'm pretty sure it is on Chinese firmware.
So if it is, do I just need to upgrade the firmware then the ROM (is that the terminology?). If so which versions would I use?
Ta
Geoff
EDIT I missed the kernel version - which is 3.18.31
OK so I've spent more time reading. I'm coming to the conclusion that I don't need TWRP and I don't need to update my Chinese bootloader, does that sound about right?
Is it right that all I need to do is
- find a G firmware zip file <<< may have incorrect terminology here, would appreciate a pointer to a valid download as I have many but not sure they are the right type of file
- put it on an SD card named as update.zip
- boot into recovery mode
- choose "apply update from SD card"
And, assuming I have used a stock version, will it then update to the latest version (hopefully Oreo) once it's started?
Do I need to do any formats or wipes anywhere in the process? I already have a backup of my stuff, done with AXON7Toolkit.
And can you recommend a version of firmware to go to, or does it not really matter as it'll update itself anyway?
UPDATE: MiFavor UI is v5.0
OK, so there is no real short easy answer to this.
I've used the updates from ZTE since I've had the phone until I soft bricked it.
Zte offer updates similar to this.
Eg: B06 to B08 or B08 to B09 and B09 to B12
The update has to be done in stages.
Some updates you can copy to the internal SD card then go settings > system > update, your phone should detect the updates and tap install.
Some Zip files can be done the same way after changing the file name to update.zip or Ota.zip depending on the instructions.
Some zip files have the update within the Zip so it needs to be extracted.
Make sure you have the correct version software and correct version for your phone.
After the update is done all the data etc will be still in place unless you reset your phone.
All I can say is research, research, research.
Btw if your bootloader is unlocked some updates will fail.
I hope this helps
PS: you can use the method you described as well, just follow the instructions carefully.
In most cases there is no need to wipe or format unless you are using a custom ROM etc.
Excellent, thanks.
Going back a post or two - I re-installed Google Play services but still have problems. Before a reboot it appears in the list of apps, and Play opens, but the sidebar comes straight in and behind there is a message "Error while retrieving information from server [RH-01]" . After a reboot it is no longer in the list of Apps (even when expanded to include System apps), and Play just opens and closes real quick.
So I found a thread which led me look in Settings in Play Store at the Play Protect Certification, which says the device is not certified. So I downloaded the related app and ran it, which gave me a code which I put in web page then entered the stuff into my phone but still no joy. I suspect this is causing the Play problem and I think it'd be due to trying to use Google product on a Chinese firmware (again I'm not sure my terminology is right - I mean whatever the software is which throws up the initial boot screen).
So I think I need to get off the Chinese firmware at the same time as going to a G version, and I'm even less clear on how to replace the firmware than the rest of the process - what files and how it's done.
Going back to the more recent post (Syberclone), as I have already wiped my phone I'm not concerned about keeping data. I understand about doing this is steps - I hadn't thought of doing it that way but it seems very sensible.
I found a post by Raystef66 with loads of links to software - including A2017X_B15_Universal_Bootloader.zip. Does this replace the Chinese firmware and would it work with all zipfiles? How would I apply it? (I was using Axon7ToolKit the other day and that looks quite impressive).
I am still confused over the different types of files and the naming conventions but it's slowly making more sense. Appreciate all advice.
Thanks
Geoff
Personally I use Edl packages much easier imo.
I use Miflash or Edl tool by @djkuz
I have a bad flash help page that explains the process.
The bootstacks etc are mainly for custom ROMs, if you are just looking a factory firmware, Edl's are much easier to install without worrying about bootstacks, twrp etc.
My last Edl update was from Nougat (Chinese Rom)
To Oreo A2017G I had to factory reset after the install though.
Thatnks. Today I've done a fwe more hours reading, literally. This is taking all my time!!
Anyway I decided to follow your advice and found a full EDL of Oreo, which I applied. (ZTE_A2017V3.0.0B17) and the phone is still working, and I've not lost my apps.
However I still have the problem that Play Services won't run. I've upgraded it, followed a few troubleshooting guides, used different versions ( - should I be using the 64 bit one??) but still no joy. If I could only get that going I'd stick with the Chinese firmware. It is looking to me like it can't sync, though whether that's a cause or an outcome I'm not sure. Not unexpectedly, a number of apps will not run as a result.
I haven't done a factory reset yet, I thought I'd ask here first to see if that is likely to fix it or whether anyone has any better ideas.
Despite the time this is taking I'm enjoying learning and am grateful to you all for the responses.
The play store link "device not certified" will happen when you change a ROM from its original.
So I have an A2017G, when I run any other ROM it will show "device not certified" because the link between the phone and the software isnt in sync.
When I was running the beta Oreo from the Chinese my device always had this issue and NFC does not either usually.
There is a play store app version which will work as it should however the certified is still a problem without a work around.
When I installed the G version Oreo to my device the certification is back.
I'm miss some of the Chinese ROM animations tho.
Anyway I hope this helps
I am using an A2017 ROM on an A2017. I've not changed anything else. Maybe I need to update the boot stuff (firmware?).
What I'm seeing is that Play Services always needs to be manually enabled, and seems to drop out and require re-installation sometimes. So I have an apk on my internal memory for quick access.
I'm not sure that the "device not certified" is a cause or effect really.
So I have an apk on my internal memory for quick access. It's the latest non-beta 64bit version for Android 8 - should I try a specific one, e.g. is there likely to be a specific one which matches the ROM? (An older non 64 bit one seemed to give much the same problem)
I'd put up with the problem except I can't run some Google stuff at all (Play Store for instance), and some other stuff is compromised (e.g. I can't get into Waze on my usual ID, I'm guessing Play Services plays a part in authorizing). And I can't install some stuff I'd like.
And I'd still be interested to know which bits require upgrade to go to a G version, if it is do-able and would run trouble free.
There was a play store app that worked on most ROMs.
You are on Oreo now yes?
There was a link on one of the Android pie ROMs that I used, it worked fine.
If you are still having issues you can use an app called Yalp that works like the play store.
I've used it on custom ROMs when the play store app refuses to work.
Yes, Oreo now.
I've put YALP on and that looks pretty good. I now seem to have most things working, and those that aren't I can probably live without.
I use a network tool called FING which reports my phone details, and I think it's incorrect but it's saying in one place it's a A2017U which I don't think is right. But now I am more comfortable with EDL and stuff I'm going to continue to fix this properly but the urgency is now not there. I was thinking if I couldn't fix this I might have to buy a new phone on black Friday!! So thanks for your help.
I'm still not really quite sure why I get Chinese characters at start up and what files I need to change to out a G firmware on, if that is what is wrong, and if it's do-able. I think if I knew how to do that then I could put on a G firmware and matching ROM and I'd be in business!!
The same page offered me F-DROID which seems to offer a whole load of different free apps. Maybe they don't have ads? Anyway I'll have a look.
Anyway, again - thanks!!
Geoff
Geoff I'm glad I could help
I was running the Chinese Oreo on my phone and after selecting English in setting some parts of the ROM were still in Chinese, even some notifications.
I converted to the A2017G Oreo update when it was released.
I miss some of the features in the Chinese ROM tho.
So... without wishing to prolong this... your phone was Chinese (as mine was) and you are now running a Global version and all you upgraded was the ROM? And are you able to use the Play Store and you don't have any issues running apps I - and can you run, say, Google Maps?). Is your bootloader still unlocked and if so is the menu at boot time still in Chinese?
Or have you upgraded something other than the ROM?
I actually have an Axon 7 A2017G here in Australia.
I soft bricked it when I accidentally made a mistake flashing a ROM.
I searched for a suitable stock firmware but I could only flash the Chinese Oreo Beta. It had to be modified to run on my device until the Oreo package for my A2017G had been uploaded.
I've now running the proper software for this phone.
Thanks.
Another couple of hours and I have made a Major breakthrough! I went back over all my notes and checked what i'd done and one thing I hadn't remembered doing was setting the Pay Store to Autorun. So using the Mi-Assistant I have done this, and most of the stuff which wasn't working now is. I am still working on why OK Google won't work, but the list of things I might have to live without is now quite short!! The one major benefit is that my battery life seems to be greatly increased. Boot time is also much quicker which is a bonus but not critical.
Nice, yes battery life is improved, actually the Chinese Oreo Beta has a better battery life than my current Oreo.
I could get up to 4 days out of the Chinese ROM, my current ROM can manage just over 3 days at best.
I have battery saver mode on but not ultra battery saver.
I hope this has been a good learning experience for you?
"I hope this has been a good learning experience for you?"
For sure it has. Back in the days when I was 3rd level computer techie, the best learning came from other experts and from being thrown in the deep end, rather than what they taught you in the classroom!

trying to understand between root bootloader and flashing rom

my first g6 had a broken screen last week. me being abusive to it. from frustration.
bought a used g6 as a backup very quickly but im not liking v9.0
id like to install the first 7.0 version it ever had available H870. I have 3 apps total installed more of a pro privacy advocate so no browser and would like to shut those annoying update popups which are extremely intrusive and come at the worst times. would like to block as much as possible to also have battery life
I dont understand what the roo does, what the bootloader does and I understand I need to flash a kdz rom. if I understand, I need to install 7.0 (not 7.1 or later) then use the root and bootloader to block updates notifications and to remove default apps in the phone.. basically tweak system things...is this correct?
I used to tinker with windows mobile back in the days but after years of fear of bricking and only have one phone, I had to suffer through annoyances in the OS they give. it is time to have a phone that doesnt annoy me and isnt intrusive. I really do need calmness after 18 months of hell with covid.
inevitably I will move to pinephone once it gets mature. for now using this g6. I dont run after the newest models.
any insight or experiences or tips you could throw at me would be appreciated as I think i may be mixing things up
stay afe
i have a used H870 here. Did the root+twrp, up to PIE and tryed/flashed many things, but wasn´t that happy at all. That was a few month ago. A week ago I replaced my battery and tada, sweet runner. So again I wanted more and bricked it to "no sim" after restoring from a kernel here. Since there isnt much for Pie, roms, deadlinks, broken twrp etc. the only tool which worked and helped me was LG bridge to restore to latest stock pie.
I would recommend u to root without recovery via magisk/fastboot method and go for some adaway, acc battery charger, lsposed + gravity, debloat and maybe a kernel manager + etc.
dont forget, when u have sporadic lags, go for the battery.
gl on ur way mate
----
ps just for info
the only working usb drivers where delivered via the LG bridge tool driver update for me, i tryed many..

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