Develop Bugs

TWRP BOOT LOOP has anyone found a solution (OTA update)

i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
[SOLVED]
went back to stock recovery and side loaded the full 1.4 gb rom i will leave a link for tutorial that i used, i wanted to get back to complete stock and this was the one use
"https://forums.oneplus.net/threads/guide-how-to-unroot-your-oneplus-3-and-go-back-completely-to-stock.456232/"

When you have TWRP you have to install full zip, not simply the eval OTA zip

bob_cheeseman5 said:
i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
Click to expand...
Click to collapse
Flash the stock recovery.
Get stock recovery from downloads.oneplus.net

I cant seem to flash the stock recovery. The device is not visible in adb devices or fastboot devices. im facing the same issue.

If you are using TWRP 3.0.4-0 - try a hard boot...hold down the power button for 20s...wait 20s, power it back on.

bob_cheeseman5 said:
i tried installing the lastest ota update while i had twrp installed, i have tried everything to get out of this loop.
tried flashing the updated rom off the oneplus website and if gave me errors
just looked at my phone and now it wont turn on what so every getting really stressed please help
Click to expand...
Click to collapse
easy solution. Boot into fastboot
download this tool.
https://forum.xda-developers.com/oneplus-3/development/toolkit-oneplus-3-toolkit-unlock-t3398799
if newest version isnt working, download an older version with older twrp
than unzip the tool and run the .bat file and install twrp.
Thats it

There are many posts on Nougat not working with official TWRP (based on 6.0 build). Try booting into stock recovery. performing a system settings reset, then booting into fastboot and run the adb command, <fastboot boot TWRP-3.0.2-1.28.img>. From there you can do virtually anything you need to do. I recommend at least using a modified version of TWRP (such as 1.28). This has been posted many times before, please try and do a search for the answers first, it will help tremendously. Thanks

recovery
i had the same problem on my rooted OP3 when i used TWRP 3.0.2-1 , it worked to flash the full 4.0.1 rom but failed for everything else, flashing latest verion of twrp fixed it for me

Got the same problem (unrooted phone + device state locked, cannot access recover, but can access fastboot) with an added "benefit", USB debugging mode was off before it all went crashing and burning.
How to access my phone via PC? (all the guides I've found assume I had USB debugging mode on before the phone got soft-bricked, but as a normal phone user who never installed anything custom, I've never figured it is A MUST BE ON function).
Or simpler question - what tool to use to turn on the USB debugging mode? (if that is at all possible?)

Aislandas said:
Got the same problem (unrooted phone + device state locked, cannot access recover, but can access fastboot) with an added "benefit", USB debugging mode was off before it all went crashing and burning.
How to access my phone via PC? (all the guides I've found assume I had USB debugging mode on before the phone got soft-bricked, but as a normal phone user who never installed anything custom, I've never figured it is A MUST BE ON function).
Or simpler question - what tool to use to turn on the USB debugging mode? (if that is at all possible?)
Click to expand...
Click to collapse
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?

bob_cheeseman5 said:
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?
Click to expand...
Click to collapse
Noted that you solved your issue, but this post is about the new version of TWRP. Version 3.0.3 is available on twrp.me and it works with Nougat.

bob_cheeseman5 said:
I have tried doing the installing of the newer twrp but cant find a newer version of it, i am on 3.0.2-1. i have the same problem as you that my USB debugging isnt on i dont think so when trying to use the op3 tool kit i can get it to pick up fast boot but nothing else.
have you found a solution to your problem yet?
Click to expand...
Click to collapse
Gave up trying and booked a session with OP technicians Will see how it goes in a week.

Is it possible to get back to stock ROM at this point?

Sorry in advance if this has been covered elsewhere.
-followed the steps to install a custom rom. unlocked the boot loader, installed twrp, cleared dalvik/data/etc.
-ROM eventually booted up ok, however, I could not connect to project fi with it. (unfortunately, your project fi service can't be activated right now-code t120).
-So, my intention was, ok, I will go ahead and go back to the latest stock. however, booting to recovery it appears to have reverted back to the stock recovery, and adb will not detect the device(fastboot will, but, when trying to run anything, be it to repush twrp, it just hangs. If I try and do the flash-all.bat off of the stock rom zip, it tells me flashing is not allowed for critical partitions, even though it is in fact unlocked. To be safe, I tried both fastboot flashing unlock, and unlock_critical.. both went to a '...' and sat there).
It still boots up and loads fine, I just cannot activate Fi, and cant seem to get anywhere with it otherwise. Any suggestions?
One final question- since i cannot get it to install stock rom via fastboot- if i drop the taimen-opm zip onto the phone directly, can i install it that way? Or am I S.O.L. because i do not have the custom recovery on there anymore?

Okay, what you're going to have to do is.
1. Go into fastboot mode and fastboot boot twrp.img and then flash another rom after doing a factory reset in custom recovery
2. Go into fastboot and flash factory image by downloading it from the google site.

mr.notsotech said:
Okay, what you're going to have to do is.
1. Go into fastboot mode and fastboot boot twrp.img and then flash another rom after doing a factory reset in custom recovery
2. Go into fastboot and flash factory image by downloading it from the google site.
Click to expand...
Click to collapse
Unfortunately that won't work for me. I tried fastboot boot recovery.img (its what I had renamed the twrp img file) and it fails with a data xfer failure, too many links.

otownmarine said:
Unfortunately that won't work for me. I tried fastboot boot recovery.img (its what I had renamed the twrp img file) and it fails with a data xfer failure, too many links.
Click to expand...
Click to collapse
Scratch that. Took some major screwing around (changing usb ports, multiple attempts at getting twrp to stick) but I was finally able to get it to apply the stock ROM and everything seems functional. Thanks.

Use this tool next time, it should help you out. It's worked 100% of the time for myself and I ended up staying on stock after countless minor annoyances with being rooted or using custom roms.
https://forum.xda-developers.com/pi...ol-deuces-bootloop-recovery-flashing-t3704761

otownmarine said:
Scratch that. Took some major screwing around (changing usb ports, multiple attempts at getting twrp to stick) but I was finally able to get it to apply the stock ROM and everything seems functional. Thanks.
Click to expand...
Click to collapse
Very sad to see we are still having so many USB related issues. We really need to come up with a definitive FAQ me thinks. Glad you got it done! ?

otownmarine said:
Scratch that. Took some major screwing around (changing usb ports, multiple attempts at getting twrp to stick) but I was finally able to get it to apply the stock ROM and everything seems functional. Thanks.
Click to expand...
Click to collapse
Yeah I keep forgetting that twrp is super finicky on this device because of the boot slots (a,b). I'm so happy you got it working. your adb has to be up to date as well.
I learned all of that the hard way as well. I just don't have a good memory of the steps I did. lol. I found that for my usage after trying multiple roms on this device that, stock rom is the best for my battery life and smoothness. I did root though and flashed a custom kernel. But that is only because I love thinking that my kernel is helping my battery life somewhat as well.

Just a heads up the reason you cant use project fi on a custom ROMs is because your probably using the e-sim. The software process behind the e-sim hasn't been worked out for custom ROMs and probably never will (not a big demand for it). You can always order a Sim card from project fi and put it into your phone and that will work with a custom ROMs; I have used project fi on every custom ROMs for Pixel 2 xl there is and no issues.

Help, might have killed my device

Not 100% sure of best place to post this, but I'm getting desperate now...
I'm pretty worried I've killed my device. After following the guide on how to root with Magisk, my phone is stuck on the white "loading" screen with a G logo. I've since tried to restart, but I can either go into fastboot mode or get the white screen when attempting to boot into android.
Tried to flash the latest factory image to fix it, but that couldn't get that to work. Now the phone isn't showing up on adb devices either. panicking a little bit here.
Does anyone know what to do?

ADB won't work unless the phone is booted into Android or in stock recovery for a sideload.
Does your computer recognize the device when you are in Fastboot mode and type "fastboot devices"? Try flashing the factory image again but make sure you have the most up to date platform tools from Google. Old versions are a common cause of issues.
Did you flash TWRP recovery or just boot to it to root? If you still have stock recovery you can try a factory reset from there but any modified images you installed might be the issue.

like Fury said, your platform tools need to be updated, same thing happened to me.

What didn't work when you flashed the factory image? Do you have the latest sdk tools version of fastboot and adb?
Sent from my [device_name] using XDA-Developers Legacy app

fury683 said:
ADB won't work unless the phone is booted into Android or in stock recovery for a sideload.
Does your computer recognize the device when you are in Fastboot mode and type "fastboot devices"? Try flashing the factory image again but make sure you have the most up to date platform tools from Google. Old versions are a common cause of issues.
Did you flash TWRP recovery or just boot to it to root? If you still have stock recovery you can try a factory reset from there but any modified images you installed might be the issue.
Click to expand...
Click to collapse
Thanks so much, this is where I was going wrong. Have gone into recovery and rescued it.
Tried the process again to get Magisk working, but ended up the same although this time the white screen only went on for a while before I got an error saying my data was corrupted. Tbh, after all the stress I'm just going to give up on this and live with the phone in stock. All my drivers and adb were installed and setup today, so everything is up to date.
edit...
Not out of the woods yet. After restarting the phone and going through the setup, it's not detecting the SIM card or any wifi networks. I've installed the OTA and wiped data once more after having this problem, still not resolved.

Nick676 said:
Thanks so much, this is where I was going wrong. Have gone into recovery and rescued it.
Tried the process again to get Magisk working, but ended up the same although this time the white screen only went on for a while before I got an error saying my data was corrupted. Tbh, after all the stress I'm just going to give up on this and live with the phone in stock. All my drivers and adb were installed and setup today, so everything is up to date.
Thanks again for helping.
Click to expand...
Click to collapse
It sounds like you are trying to install Magisk v17.1 like I tried. If so you need to use v17.3 beta. If you follow this thread you should be fine. It even tells you what to do for your original problem, just takes some reading and patience.

Misterxtc said:
It sounds like you are trying to install Magisk v17.1 like I tried. If so you need to use v17.3 beta. If you follow this thread you should be fine. It even tells you what to do for your original problem, just takes some reading and patience.
Click to expand...
Click to collapse
I tried it with both 17.1 and 17.3, so not sure what the issue is. Seem to have finally booted up properly with wifi and signal working, so hopefully it's all good now. Gonna give up on rooting.

Nick676 said:
Not 100% sure of best place to post this, but I'm getting desperate now...
I'm pretty worried I've killed my device. After following the guide on how to root with Magisk, my phone is stuck on the white "loading" screen with a G logo. I've since tried to restart, but I can either go into fastboot mode or get the white screen when attempting to boot into android.
Tried to flash the latest factory image to fix it, but that couldn't get that to work. Now the phone isn't showing up on adb devices either. panicking a little bit here.
Does anyone know what to do?
Click to expand...
Click to collapse
you may want to try to totally uninstalling Magisk frist with the official latest Magisk uninstaller and reboot and then do a complete factory reset. this has helped me in the past.
my new pixel 3XL will be the first Android phone that I owned that will not be rooted.

TWRP recovery not working on Blackview BV9500

Hi everybody,
I try to root my Blackview BV9500 by installing first TWRP recovery. I use fastboot mode on a linux laptop to do that.
I successfully flash the twrp recovery image, but after that, the phone don't boot in recovery anymore.
It try to boot into recovery, but it reboot in normal mode a few second after.
I tried also with the cmd "fastboot boot recovery.img".
When i flash back the original recovery image, it work, i can boot the original recovery without any problem.
Does anyone have the problem?
Some one can help me to find a solution?

I, too, am trying to do this. I have not yet flashed it... I was going to use the fastboot boot command to boot the recovery kernel before permanently flashing it, to make sure it would work, and in my googling I stumbled across this post. Serendipity! [Edit 3: Although, reading your post again, I see you tried that as well and it didn't succeed for you. For me, it simply tells me remote: command not found, so how were you able to even get that to work?]
All that said... I have the BV9500 Pro, specifically for the two-way radio, so I'm going to try to keep that little tidbit of hardware working in the process. I mainly just want to tweak the menus a bit, tweak the quick settings, get root, delete the Google crapps I won't be using...
On to your problem, though, I can't help much but maybe if we post back and forth our successes and failures we might be able to stumble through it together?
First, I assume you already have unlocked your bootloader? [Edit: Honestly, I'm not sure flashing the recovery would be allowed without first unlocking the bootloader]
[Edit 2: Perhaps this thread might be of help. Different model, but often the hardwares used by manufacturers are similar enough that the same steps generally work. ]

Thank you for the link, maybe i need to flash the complete rom with the twrp recovery with spflash tools, and it will work.
I will try and let you know, but i will make a backup of my rom before flashing it!
For your problem with fastboot, maybee it's because you need to install it. You can use the command "sudo apt-get install fastboot" on a terminal window if you are on linux.
If you want to enter the recovery mode, you don't need to use fastboot, you can simply enter it by pressing Volume Up and Power buttons together for a couple of seconds when your phone is off.
When Boot Mode appears release all keys.
To flash recovery with fastboot, you need first to enable the developer mode on your phone (go to "Settings > About phone" and make 7th tap on the build number, the Developer options will be unlocked and available), and unlock the bootloader of course.
here what is the process i made to flash the recovery :
- i use the command "adb devices" to check if the phone is well connected. (response is like "BV9500S320001179 device")
- then i enter in fastboot mode with "adb reboot bootloader" (phone reboot and ask confirmation for fastboot mode)
- check with command "fastboot devices"
- unlock the bootloader with the command "fastboot oem unlock" or "fastboot flashing unlock".
- flash the phone with the twrp recovery with "fastboot flash recovery recovery.img"
- reboot the phone in recovery mode with "fastboot boot recovery.img"
Normally the phone boot in twrp recovery.
Hope that will help you too.

I am too facing this problem. In case you got any solutions please let me know too.

Yves596 said:
For your problem with fastboot, maybee it's because you need to install it. You can use the command "sudo apt-get install fastboot" on a terminal window if you are on linux.
Click to expand...
Click to collapse
Yup. Already had fastboot installed for the LG G5 this phone replaced, the Galaxy Note 4 the LG replaced, the MyTouch 4G Slide the Galaxy replaced, my wife's old Galaxy S5 I used in the interims... LOL, I've got a working install. No, the "Remote: command not found" was returned from within.... Whether fastboot or adb, I forget now, but I was able to get the file to flash eventually, after reading your first post, but unfortunately the phone would not boot to it (nor Android). I thought I'd bricked it. Twice this happened. Each time, after about 5 minutes, it eventually booted to Android.
I flashed the recovery from the ROM in the link Blackview sent me and was able to boot their recovery just fine, so there's something in the TWRP that my particular phone doesn't like.
If you want to enter the recovery mode, you don't need to use fastboot, you can simply enter it by pressing Volume Up and Power buttons together for a couple of seconds when your phone is off.
When Boot Mode appears release all keys.
Click to expand...
Click to collapse
Thanks, I keep forgetting which keys to hold for recovery versus bootloader, so I use the adb command to be sure without having to keep a notepad nearby.
Clearly I don't do this as often as I used to.
(snip)
- flash the phone with the twrp recovery with "fastboot flash recovery recovery.img"
- reboot the phone in recovery mode with "fastboot boot recovery.img"
Normally the phone boot in twrp recovery.
Hope that will help you too.
Click to expand...
Click to collapse
Now that was something I haven't done since the T-Mobile G1 days. My understanding was that you CAN boot a recovery without flashing it first if you"fastboot boot {image filename}" but that didn't work for me either. I'm also assuming that the filename to flash can be anything because the device stores it to a partition, so it shouldn't have to be specifically "recovery-verified.img".
The recovery you have... Were you ever able to boot to it? If so, would you be willing to share a link to its download source, please?
I've got to run for a prior engagement, I'll check back later.
Thanks!

veronicadavis said:
I am too facing this problem. In case you got any solutions please let me know too.
Click to expand...
Click to collapse
I guess i find the reason why the modified recovery image won't boot.
I find an interesting information in a post of osm0sis (https://forum.xda-developers.com/showthread.php?t=2073775) were he say : "some newer MediaTek (MTK) devices use special image signing that adds a "BFBF" pre-header signature, so images will unpack/repack but most likely won't boot unless run through their internal signing tool."
After more search, i find an interesting publication (http://www.lieberbiber.de/2015/07/04/mediatek-details-partitions-and-preloader/) witch confirm that.
They say in conclusion of the publication :
"Yes, I can confirm that SignTool is able to add digital signature information to firmware images. Signed images have an additional header “BFBF” and some fluff which SP Flash Tool checks on a secure device. Apparently some manufacturers merely used the default MTK key for signing the images, making them no better off than a typical insecure MTK device."
So we have to find another way to install magisk to root it.

Root 9500/pro
Mine rooted already....you guys can check on 4pda russian forum
Note : do not use the 17.1 version of magisk there because after reboot the device will freeze if you resboot after twrp 1st install...instead flash 17.3+ or 18+ right after first install of twrp...
EDIT : dont mind the russian language in TWRP as you can change it to english once there

Yves596 said:
Hi everybody,
I try to root my Blackview BV9500 by installing first TWRP recovery. I use fastboot mode on a linux laptop to do that.
I successfully flash the twrp recovery image, but after that, the phone don't boot in recovery anymore.
It try to boot into recovery, but it reboot in normal mode a few second after.
I tried also with the cmd "fastboot boot recovery.img".
When i flash back the original recovery image, it work, i can boot the original recovery without any problem.
Does anyone have the problem?
Some one can help me to find a solution?
Click to expand...
Click to collapse
Hello I have same problem... Do you have that original recovery file? I don't have and I would like to get that back. Thanks.

DL this:
needrom. com/ download/bv9500pro- bv9500-root/ (delete spaces)
- Copy Magisk-v18.0.zip and disable_encryption_9500.zip to external SD-Card or OTG device
- backup your data from internal SD-Card
- do a factory reset and turn off phone without entering the setup guide after reboot, or wipe via recovery and power off
- Flash recovery.img using scatter.txt with SP Flash Tool
- boot into recovery with hold down vol + and power
- switch TWRP to your language and install Magisk-v18.0.zip and disable_encryption.zip
- reboot and update or install MagiskManager-v6.1.0.apk
Thanks to Jemmini from 4pda.ru

kanadali said:
DL this:
needrom. com/ download/bv9500pro- bv9500-root/ (delete spaces)
- Copy Magisk-v18.0.zip and disable_encryption_9500.zip to external SD-Card or OTG device
- backup your data from internal SD-Card
- do a factory reset and turn off phone without entering the setup guide after reboot, or wipe via recovery and power off
- Flash recovery.img using scatter.txt with SP Flash Tool
- boot into recovery with hold down vol + and power
- switch TWRP to your language and install Magisk-v18.0.zip and disable_encryption.zip
- reboot and update or install MagiskManager-v6.1.0.apk
Thanks to Jemmini from 4pda.ru
Click to expand...
Click to collapse
Thank you for your help and Jemmini help too, it work fine.
But on the firmware version 20180629.

Yves596 said:
Thank you for your help and Jemmini help too, it work fine.
But on the firmware version 20180629.
Click to expand...
Click to collapse
you can just download latest firmware and simply backup NVRAM etc with sp flash tool also flash with sp tool, you will have then working twrp with disabled encryption. there are tons of post regarding using sp flash tool on this forum
im using same phone and did these actions on first day and did not have any problem with twrp or magisk

Hi,
I've bought this phone in Pro version. I rooted my phone using needrom.com/download/bv9500pro-bv9500-root/ and adb after unlocking bootloader. Then I failed with errors. Then I used SPFlashTool in root mode with official 2018092919_s32v63c2k_jk_pro.rar rom (I don't find it anymore on the net but 1) I got it on Blackview official forum and 2) I have the file on my own PC) with format+Download and replace recovery with TWRP from Jemmini from 4pda.ru before flashing. OK.
Then I rooted again: format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally.
Beware: TWRP is in Russian language at first boot, so to get it in English, first slide the first slide (allowing writing), then select 'Настройки', then the globe on top, then English, then 'Установитъ Язык'.
Hope this helps.
Then, this is my first rooted phone, so I plan to make a custom rom without Gapps (then maybe without Mediatek Ones and agold too) and remake all functionning with apps from Fdroid. Help needed on a manner of removing a system/vendor app properly. Help needed too to add V4A, as I could see max version supported is Nougat. I announce this here as my first post, but my project will be a full post. If someone want help please ask here or MP me
Note: an update of magisk is out (official 18.1), I installed it and my phone tells me a message that facial recognition was not working anymore then it only boots on TWRP... I reflashed it and my phone boots normally again. Wait and see...
Thanks to Jemmini from 4pda.ru again.
Bests Regards

nr0000000 said:
Hi,
I've bought this phone in Pro version. I rooted my phone using needrom.com/download/bv9500pro-bv9500-root/ and adb after unlocking bootloader. Then I failed with errors. Then I used SPFlashTool in root mode with official 2018092919_s32v63c2k_jk_pro.rar rom (I don't find it anymore on the net but 1) I got it on Blackview official forum and 2) I have the file on my own PC) with format+Download and replace recovery with TWRP from Jemmini from 4pda.ru before flashing. OK.
Then I rooted again: format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally.
Beware: TWRP is in Russian language at first boot, so to get it in English, first slide the first slide (allowing writing), then select 'Настройки', then the globe on top, then English, then 'Установитъ Язык'.
Hope this helps.
Then, this is my first rooted phone, so I plan to make a custom rom without Gapps (then maybe without Mediatek Ones and agold too) and remake all functionning with apps from Fdroid. Help needed on a manner of removing a system/vendor app properly. Help needed too to add V4A, as I could see max version supported is Nougat. I announce this here as my first post, but my project will be a full post. If someone want help please ask here or MP me
Note: an update of magisk is out (official 18.1), I installed it and my phone tells me a message that facial recognition was not working anymore then it only boots on TWRP... I reflashed it and my phone boots normally again. Wait and see...
Thanks to Jemmini from 4pda.ru again.
Bests Regards
Click to expand...
Click to collapse
It'd be great to have another rom but I'm facing a problem with battery life. Basically mobile network standby drains 5000mah battery every day i turned off from developer option but still problem is there. I have checked every single post on Google but nobody has solution for this. U guys face this problem too?

kanadali said:
It'd be great to have another rom but I'm facing a problem with battery life. Basically mobile network standby drains 5000mah battery every day i turned off from developer option but still problem is there. I have checked every single post on Google but nobody has solution for this. U guys face this problem too?
Click to expand...
Click to collapse
New update has been released today. It solves some battery issues, but be very careful.
I installed it, having TWRP and now I'm stuck in TWRP. I've tried to wipe everything but I'm still in TWRP.
I'll try SPFlashTool ... hope it works.

Everything restored & updated.
Using SPFlashTool I flashed all files included in 2018092919_s32v63c2k_jk_pro.rar (including original recovery instead of TWRP).
After that, Android booted and then, using OTA, I updated to latest version.

Reflected_God said:
New update has been released today. It solves some battery issues, but be very careful.
I installed it, having TWRP and now I'm stuck in TWRP. I've tried to wipe everything but I'm still in TWRP.
I'll try SPFlashTool ... hope it works.
Click to expand...
Click to collapse
Could you please send me the link? Can't find it on blackview forum

kanadali said:
Could you please send me the link? Can't find it on blackview forum
Click to expand...
Click to collapse
The latest version is not on the forum. I installed via OTA.
But if you mean the previous firmware, there is one link on the blackview forum: http://bbs.blackview.hk/viewtopic.php?t=480235#p795494
SP Flash tools are well documented here: https://forum.xda-developers.com/showthread.php?t=1982587
And a complete list of blackview bv9500 / bv9500 pro files and instructions (in russian): https://4pda.ru/forum/index.php?showtopic=931296
Hope you find what you are looking for.

@kanadali,
for the moment I'm not facing battery drain because there is not simcard in it at this state of my modifications, sorry.
@Reflected_God,
I think this is the link I used, I use the 2018092919_s32v63c2k_jk_pro.rar rom for base.
For all others who faces big problems like me (facial recognition not working then reboot on twrp only, I could reflash my phone with SPFlashTool, the rom and twrp from Jemmini/4PDA in russian only (others don't work for me). I used Format + Download in root mode on Linux. Then format /data with TWRP, then install disable_encryption.zip, wipe dalvik, reboot on TWRP, then install Magisk, wipe dalvik, reboot normally. Do other things. To remove gapps I disabled/force stop it before remove with TWRP. Others apps I can't disable simply remove with TWRP. I test if I encounter bugs but none for the moment. If someone wants to know what I do I've made a LibreOffice Calc sheet log, which evolve when I have time
Hope this helps
Bests Regards

Need Files or a GOOD guide. bv9500 NOT PRO.
If someone could upload the exact files that they used, and the exact same steps, that would be great. Please mention what stock version you have and a link to the image if possible as well. I've followed numerous different guides, with multiple different rom versions, multiple different recovery imgs, used sp flash tool and adb/fastboot multiple times, tried making sure everything was unlocked before each try, have all the necessary drivers, and the closest I get to a functional twrp recovery is a green line that appears at the top of the boot screen before it reboots. Ive tried going to the source, the russian site, but all of the links are 404ed. if not for me, then it would be great to just have this all in one place. Thank you please future hero.
Please include exact program versions (ex SP Flash) as well if not zips of them. I am sorry to be asking so much in one post however I truly didn't know what else to do. And I am typically very good with my google fu xD
I currently have build number BV_BV9500_V1.0_20181026. That seems to matter I believe.

I second the notion.
I have the pro model. I have considered rooting it, but honestly, the phone works well enough as-is without root (for me). However, I'd LOVE to be able to play with different ROMs on this device **AS LONG AS I CAN MAINTAIN THE TWO-WAY UHF TRANSCEIVER FUNCTIONALITY** (i.e. not some "needs-a-network-of-some-kind" "walkie talkie app" like Zello but the real UHF two-way), and I'd LOVE the ability to play with the files associated with the radio to really explore the hardware's capabilities.
Unfortunately, this phone seems more popular in [North]eastern Asia than anywhere else so I don't think we're likely to get much on this forum regarding it unless and until BV become a popular name in the western hemisphere.

Test installation failed (Moto G 1st)

Hello all, I'm sure that's not the only topic about that kind of problem but I can't find anything here or in google (or DuckDuckGo), I hope you could understand after few hours of researchs I'm kinda bored...
Well I have lot of questions, I would love to use LineAgeOS but I'm really noob.
There is really not only one kind of solution, people on youtube don't presentate with the same way. Lot of indian youtubers show you how to install it on a phone where lineageos is already installed --' or when you find a guy he shows you, he doesn't show you what he did before with TWRP or how he booted the phone etc.
Well I begin :
Do I need to reboot my phone before install Lineage ?
If no, I have downloaded the version for my phone, I have TWRP, I have downloaded the flash for TWRP for the phone (what I don't know what to do with after). And then when I try to restart the phone in recovery, the logo of Android appeared with "no command".
I'm sorry for my english, that's not my native language.

LeVisage said:
Hello all, I'm sure that's not the only topic about that kind of problem but I can't find anything here or in google (or DuckDuckGo), I hope you could understand after few hours of researchs I'm kinda bored...
Well I have lot of questions, I would love to use LineAgeOS but I'm really noob.
There is really not only one kind of solution, people on youtube don't presentate with the same way. Lot of indian youtubers show you how to install it on a phone where lineageos is already installed --' or when you find a guy he shows you, he doesn't show you what he did before with TWRP or how he booted the phone etc.
Well I begin :
Do I need to reboot my phone before install Lineage ?
If no, I have downloaded the version for my phone, I have TWRP, I have downloaded the flash for TWRP for the phone (what I don't know what to do with after). And then when I try to restart the phone in recovery, the logo of Android appeared with "no command".
I'm sorry for my english, that's not my native language.
Click to expand...
Click to collapse
So your Problem has nothing to do with lineageOS. You can't install twrp! First make sure you download the correct official twrp for your device. Then follow the instructions on twrp page.

kurtn said:
So your Problem has nothing to do with lineageOS. You can't install twrp! First make sure you download the correct official twrp for your device. Then follow the instructions on twrp page.
Click to expand...
Click to collapse
I have downloaded TWRP.
After, I have download a file from TWRP for my phone it's a file .img and then I'm blocked

LeVisage said:
I have downloaded TWRP.
After, I have download a file from TWRP for my phone it's a file .img and then I'm blocked
Click to expand...
Click to collapse
Use fastboot method, if not rooted
https://twrp.me/motorola/motorolamotog2013.html
oops: firs unlock bootloader
https://wiki.lineageos.org/devices/falcon/install

kurtn said:
So your Problem has nothing to do with lineageOS. You can't install twrp! First make sure you download the correct official twrp for your device. Then follow the instructions on twrp page.
Click to expand...
Click to collapse
I have started following the "steps" from the twrp for Motorola after "Fastboot Install Method (No Root Required):"
I was never thinking it was so much hard. People in tuto dont do all of these.
I have to download Android SDK, to work with I have to download and install (what doestn't work) ADB drivers.
At a moment they dont say I have to connect my PC to my phone but when ?
I'm very bored about all those undescribed steps.

LeVisage said:
I have started following the "steps" from the twrp for Motorola after "Fastboot Install Method (No Root Required):"
I was never thinking it was so much hard. People in tuto dont do all of these.
I have to download Android SDK, to work with I have to download and install (what doestn't work) ADB drivers.
At a moment they dont say I have to connect my PC to my phone but when ?
I'm very bored about all those undescribed steps.
Click to expand...
Click to collapse
Yes. Windows is boring. I normally use Linux.