I got an unlocked GSM AS993 on Ebay. Sure, it's frustrating how locked down the bootloader and stuff is but my one true issue is that it's a "GSM unlocked" phone and mostly works correctly except that it has default, baked-in APN settings from C Spire that it keeps defaulting to on reboot, sometimes overwriting the Ting APN settings I need for my MMS stuff to work. It will also occasionally do this while the phone is *running*, swapping out my Ting APN's MMSC for the C Spire one. It does this even though I added a separate APN for Ting. It overwrites the one I added!
Is there a fix or workaround to stop it from overwriting my APN settings? Preferably without doing the painfully complicated flash-three-images-together method used for rooting
I have this same issue but it defaults back to Sprint settings. Anyone know how to fix it?
TashWill said:
I have this same issue but it defaults back to Sprint settings. Anyone know how to fix it?
Click to expand...
Click to collapse
Hi, good news! I found a solution. Bad news: had to flash a completely different ROM compatible with my device and region (United States) which of course means wiping the device completely.
I used a patched version of LG UP, downloaded Canadian (H873) firmware, did a full partition DL to write all the partitions to the device and after a lot of time it booted and I had a working G6 with zero carrier bloat and it didn't mess with my APN settings after that. I did a full factory reset before & after installing the firmware but you'll lose all the data on your phone either way, so do be aware of that.
Factory reset is performed by booting up holding power button and vol-down, releasing ONLY the power button for a split second when the LG logo appears and then pressing it back down again until the reset menu appears.
Firmware version I got was H87320i_00_OPEN_CA_OP_0204 from lg-firmwares.com
I got the installer for LG UP and the patch files from Jthein's excellent UnBrick thread.
most excellent tip
Mike_IronFist said:
Hi, good news! I found a solution. Bad news: had to flash a completely different ROM compatible with my device and region (United States) which of course means wiping the device completely.
I used a patched version of LG UP, downloaded Canadian (H873) firmware, did a full partition DL to write all the partitions to the device and after a lot of time it booted and I had a working G6 with zero carrier bloat and it didn't mess with my APN settings after that. I did a full factory reset before & after installing the firmware but you'll lose all the data on your phone either way, so do be aware of that.
Factory reset is performed by booting up holding power button and vol-down, releasing ONLY the power button for a split second when the LG logo appears and then pressing it back down again until the reset menu appears.
Firmware version I got was H87320i_00_OPEN_CA_OP_0204 from lg-firmwares.com
I got the installer for LG UP and the patch files from Jthein's excellent UnBrick thread.
Click to expand...
Click to collapse
Thanks for the tip, this seems to have worked for me. Being on T-Mobile I would like to have Wifi Calling and VoLTE working as well, which the H873 ROM is not showing in the menu options. I understand the US997 phones have these options enabled and work on T-Mobile, not sure if cross flashing AS993 -> H873 -> US997 will work or not. If anyone has tried this I'd be curious to hear of success or failure.
I don't remember for sure but I think I may have cross-flashed either an AS993 or LS993 to US997, a long time ago. Why not give it a try? Worse come the worse, it will give you an error in LG UP and stop the process or even if you manage to brick the phone, just follow the unbrick guide that Mike_IronFist linked. With the firehose out for the g6 long ago, you can't really brick it permanently (except don't mess with H873 as it can't be cross-flashed).
if rooted use gravity box or decompile framework apk gravity box has the option under framework device_respects_carrier_config=true change to false and change_apn to true
Related
ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?
Naruto101 said:
ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?
Click to expand...
Click to collapse
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.
Bibz0r said:
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.
Click to expand...
Click to collapse
Thanks for help bro. I took a screen shot of my info. I'm not sure why it shows bmc when I downloaded the rwc files. And is the product code correct?, also I never seen the code for csc modem before. Is it not suppose to match baseband, pda, bootloader
Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.
Bibz0r said:
Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.
Click to expand...
Click to collapse
Thanks for all the help man, did the sim thing and it just loaded me into twrp and i didnt see an option so I changed it via the app. Same thing still got the 4G and bell bloat. But csc now says bmc/rwc
Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.
Bibz0r said:
Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.
Click to expand...
Click to collapse
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me
Naruto101 said:
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me
Click to expand...
Click to collapse
Don't worry, I'm not giving up on you
When you flashed back to stock ROM, did you do a full wipe before?
It is really important that you do a full wipe so that it doesn't leave any traces of your old installs.
Try to flash via Odin (while your phone is on Download Mode). Check the AP and the CSC box and input the stock file from SamMobile.
Let me know if it fixes it.
Got an LG G2 Lollipop from a friend, originally on Sprint but I can't switch to sprint, so followed procedures to unlock sim for use on tmobile (root on lollipop, international sim unlock) those went ok.
Everything I found went like this:
Edit:
ro.carrier=spr(or TMO, or SPR in caps, sources varied so i tried all suggestions)
ro.build.target_operator=spr (or TMO...etc)
persist.service.crash.enable=1
Once i did this I(I think the problem started on the target operator edit) I got so many alerts "Unfortunately, the process com.android.phone has stopped" I couldn't access settings, couldn't get back into the rom toolbox editor, couldn't press barely any buttons besides restart. Went into recovery mode, cleared the cache, no luck. Went back in to do factory reset as last resort...still no luck. Is there any way I can fix this? If this can't be solved via forum, anyone who is savvy switching from sprint to tmobile I will pay to have it mailed and fixed because I've researched this all week and still am not having any luck.
Much thanks
Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
MrFarquad said:
Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
Click to expand...
Click to collapse
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
If your trying to use the phone on Verizon I would do the following:
1) Change your CID to Super, 11111111
2) Flash the US Unlocked RUU, http://www.htc.com/us/support/rom-downloads.html#unlocked
3) After it fully boots, reboot into the bootloader & flash the Verizon radio, http://forum.xda-developers.com/verizon-htc-10/how-to/vzw-how-to-unlocked-model-vzw-t3376743
4) Make sure the Preferred Network is set to Global, Settings>Mobile data>Preferred Network
5) Get to the secret menu *#*#4636#*#*, and set the preferred network type to "CDMA/EvDO/GSM/WCDMA/LTE Auto"
I use a Verizon model with the US Unlocked firmware. As far as custom ROMs, some work with Verizon's network and some don't. I'm sure theres a workaround but I've stuck with the US Unlocked firmware, and just use Xposed for any tweaks/mods.
If your trying to use it on AT&T and the radio from the US unlocked RUU should work.
andybones said:
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
Click to expand...
Click to collapse
Used to be a guy around here we could trust to help.
Sent from my HTC6545LVW using Tapatalk
Hello,
I bought a H910 off ebay, it said it was unlocked, the frequencies matched the ones of our carriers and it was not mentioned that the phone was AT&T.
Is there any way to get it to work on the local antennas?
I have attempted to :
- Use access points the carrier support
- Use the hidden menu to attempt to unlock frequencies, however the H910 has barely any options in there.
- Flash a H915 Rom in there while following the runningnak3d's guide : https://forum.xda-developers.com/v20/how-to/root-h910-v10m-t3664500
It gave much more options within the hidden menus, total control over any bands, protocals etc. However, it is in my understanding that the modem doesn't work when flashing a H915 from H910 even if the
hardware is apparently the same.
I have then continued the root procedure thinking it might give me the functional modem back with the additionnal options of the H915 but that wasn't the case. I even gained a bad looking warning startup screen.
So now I am wondering..... is there any way to get the signal working? I didn't find any guide or any posts which seemed to indicate steps. It is pretty frustrating that they give us so much troubles even if the hardware has all the capabilities, damn carriers.
If nobody has any suggestions, could I know where I could get the same H915 rom used on the kdz within the root guide? I would like to keep that rom and see if applying the modem fix would allow me to have signal.
Edit : ..... I just tried to flash the H915 again... and I was dumb, instead of selecting all, I kept the modem and recovery......... now my phone no longer want to boot and I can't even use LGUP since it is not booted. Download mode doesn't work either.
I thinks I just killed it
Edit 2 : Oh my god, just got Download mode to work, the procedure was slightly different than usual.
"The step I was missing was to remove the battery, disconnect the USB cable, put the battery back in, hold volume down but don't press power, instead connect usb cable" -chuckyanutsup
Hi guys
Received few days ago a F800L (Korean UPLUS provider), bought on Ali.
Everything worked great, excepted korean useless bloatware i wanna remove.
1st time, i tried ADB Shell to remove apps, it was perfect... But why not restarting on a fresh new firmware, without Korean ?
I downloaded H915 firmware, in LGUP, "forced" update with PARTITION DL, wipes at restart (Power Vol-, release Power and press Power again), and it's magic, no more Korean apps at restart.
No more Korean apps, and no more cellular network also :silly:
Well, it says "No service", IMEI is ok, WiFi is working, i now have a deluxe music player. :good:
So, what can i do ?
Bootloader is locked (and can't be unlocked, because it's a F800L).
ADB is ok, usb debug too.
I have hidden menus (Keypad *#546368#*915#)
So, why this hybrid F800L/H915 can't register cellular network ?
Help, please.
I would flash it to US996_usa using LUGP Patched.
Hello
US995 modem (LGUP, in Partition DL) give me IMEI NULL
With H915 modem, my IMEI is ok, but still no service (service disabled).
If no solution, gonna buy H990DS motherboard lol.
Have you opened up the v20 previously?
How hard to replace volume circuit AND physical button?
Too much covid stress. I banged the shet out of my v20 on the desk. Volume got dented. Have both items. Wondering if I should just replace the physical button
You seem like you know about roms and such so thought to ask. Cheers
Can't help, but there's a lot of V20 teardowns on Youtube.
https://www.youtube.com/watch?v=Sud4P3PCxqA
Looks like this mobile is very easy to repair.