Develop Bugs

[Guidance] SGH-T989 UPDATING ISSUE!

Good evening everyone!
I've recently wanted to update my Hercules from 4.1 (I know it's reeealy outdated) to version 6.0 Marshmallow.
So I did a few steps and now I cant' seem to go any further, and I need your help.
So far, I've done the following:
-Installed TWRP 2.8.7.0
-Used Odin to flash the TWRP mentioned above
Now, I know there are a few problems regarding this version of the TWRP on the Hercules, so I tried fixing it by using Odin again and flashing the updated 2.8.7.1 and even the 3.0 version that I found on some threads, but with no sucess.
I haven't even had the chance to install Marshmallow on my phone in the first chance, because I couldn't find any .ZIP folders on the TWRP instalation menu.
I really appreciate your help guys, I'm a noob at this and I'm just starting to figure what is what, I just need my phone updated. It's running so far atleast, so it's not hard bricked I guess.

Did you follow the instructions to flash TWRP using Odin?

olafo73 said:
Did you follow the instructions to flash TWRP using Odin?
Click to expand...
Click to collapse
I'm pretty sure I did everything I was intended to do. I installed Samsung Kies so I could install the drivers on my mobile, and then TWRP through Odin properly with the blue light showing up. After flashing it, it turned green and said PASS or PASSED. So I think I did everything right on that end, I can even access TWRP with no real problems.
I even tried to do a ROOT on my system, but again, I couldn't use ZIP or any other files on the TWRP installation option because they simply do not appear

bump

Watching this thread as I have the same problem.
I can boot to TWRP 2.8.7, but if I try to install, there's no file to install from.
I can go back to TWRP 2.6.0, and then mount the card and see the ROM, but every ROM I try fails. Something about non-virtual partitions if I try 4.4 or better, and error executing updater binary if i try 4.1

aguycalled80 said:
Watching this thread as I have the same problem.
I can boot to TWRP 2.8.7, but if I try to install, there's no file to install from.
I can go back to TWRP 2.6.0, and then mount the card and see the ROM, but every ROM I try fails. Something about non-virtual partitions if I try 4.4 or better, and error executing updater binary if i try 4.1
Click to expand...
Click to collapse
How did you go back to TWRP 2.6.0?

N1ZUW said:
How did you go back to TWRP 2.6.0?
Click to expand...
Click to collapse
With Odin.
I can boot in download mode no problem.

N1ZUW said:
Good evening everyone!
I've recently wanted to update my Hercules from 4.1 (I know it's reeealy outdated) to version 6.0 Marshmallow.
So I did a few steps and now I cant' seem to go any further, and I need your help.
So far, I've done the following:
-Installed TWRP 2.8.7.0
-Used Odin to flash the TWRP mentioned above
Now, I know there are a few problems regarding this version of the TWRP on the Hercules, so I tried fixing it by using Odin again and flashing the updated 2.8.7.1 and even the 3.0 version that I found on some threads, but with no sucess.
I haven't even had the chance to install Marshmallow on my phone in the first chance, because I couldn't find any .ZIP folders on the TWRP instalation menu.
I really appreciate your help guys, I'm a noob at this and I'm just starting to figure what is what, I just need my phone updated. It's running so far atleast, so it's not hard bricked I guess.
Click to expand...
Click to collapse
I don't know of any problems with any of the recoveries. However there are different recoveries for different roms which need to be used in a specific order and in a specific way, the first time that you virtually repartition your phone.
Have you gone through the process of applying the "virtual partition" and installing the modified "virtual partition" recovery? This is required for most of the MM roms on this phone (Hercules). The process is very well documented here http://forum.xda-developers.com/galaxy-s2-tmobile/help/guidance-sgh-t989-updating-issue-t3414641 in the #2nd post.

markusrow said:
I don't know of any problems with any of the recoveries. However there are different recoveries for different roms which need to be used in a specific order and in a specific way, the first time that you virtually repartition your phone.
Have you gone through the process of applying the "virtual partition" and installing the modified "virtual partition" recovery? This is required for most of the MM roms on this phone (Hercules). The process is very well documented here http://forum.xda-developers.com/galaxy-s2-tmobile/help/guidance-sgh-t989-updating-issue-t3414641 in the #2nd post.
Click to expand...
Click to collapse
Hi, thanks for replying
No, I dont' take I have taken that step actually. I'm pretty new to this and I tried following every step correctly, but I know that I failed or skipped something at some extent and I've been trying to figure out what exactly, so I can fix it. I guess I need to Virtual Partition my phone then, could you post me the link do to so? Because I think you posted one that would take back to this post

aguycalled80 said:
With Odin.
I can boot in download mode no problem.
Click to expand...
Click to collapse
How do you go in download mode if you have TWRP installed? Does TWRP work as download mode aswell? Thanks for your help man, hope you can fix your phone too!

N1ZUW said:
How do you go in download mode if you have TWRP installed? Does TWRP work as download mode aswell? Thanks for your help man, hope you can fix your phone too!
Click to expand...
Click to collapse
I shut it down in TWRP then hold volume down and power to go into download mode.
My phone has gone backwards now though - it doesn't matter what I load in Odin now, it won't boot up. The SAMSUNG screen is on, with a progress bar, but it never gets to the end. It stops right near the end and it sits there until I reboot it again.

Oneplus 3 soft bricked. Attempted flashing ROM with twrp and Stock recovery!

Hello please help. So I unlocked bootloader, set up Google and finger scanning password. Flashed SuperSU and that's when everything went wrong. Got stuck on the boot logo. Any suggestions? I've read about using the Qualcomm driver method but I'm unsure if it'll work on a Mac? Any help ? I've used twrp to flash ROM no luck. Used stock recovery but adb doesn't detect my devices I guess I didn't enable USB debugging after unlocking the bootloader.

jasj0410 said:
Hello please help. So I unlocked bootloader, set up Google and finger scanning password. Flashed SuperSU and that's when everything went wrong. Got stuck on the boot logo. Any suggestions? I've read about using the Qualcomm driver method but I'm unsure if it'll work on a Mac? Any help ? I've used twrp to flash ROM no luck. Used stock recovery but adb doesn't detect my devices I guess I didn't enable USB debugging after unlocking the bootloader.
Click to expand...
Click to collapse
Flashing the stock firmware using TWRP should do it for you. Just perform a FULL WIPE (formatting all partitions) before flashing the rom and keep in mind that you need a modified TWRP version to flash Oxygen OS based roms. The official TWRP won't do it.

Can you explain what you mean by "formatting all partitions"?
I have a modified twrp recovery. When I click on wipe there is two options " advance wipe" and "format data" is the 2nd optioption the one your referring too as well? I flashed ROM.zip with the modified twrp without formatting data (I rather wait on your reply to be sure) and instead of getting stuck on the boot logo it is doing a bootloop now. Thanks for your assistance BTW.

jasj0410 said:
Can you explain what you mean by "formatting all partitions"?
I have a modified twrp recovery. When I click on wipe there is two options " advance wipe" and "format data" is the 2nd optioption the one your referring too as well? I flashed ROM.zip with the modified twrp without formatting data (I rather wait on your reply to be sure) and instead of getting stuck on the boot logo it is doing a bootloop now. Thanks for your assistance BTW.
Click to expand...
Click to collapse
Advanced Wipe
--> mark
"ART Cache"
"Cache"
"Data"
"Internal Storage"
"System"
--> swipe to wipe
If you don't get any errors
--> restart TWRP (Or you can't access the storage)
--> flash rom

Did that no luck. I'm trying to flash 3.2.7 anything tricky/specific I should be doing ?
I'm going to flash 3.2.6 tomorrow when I get near Wi-Fi and See what happens.
Should I be downloading "OTA zip" or" oxygenOS 3.2.6 full zip"

jasj0410 said:
Did that no luck. I'm trying to flash 3.2.7 anything tricky/specific I should be doing ?
I'm going to flash 3.2.6 tomorrow when I get near Wi-Fi and See what happens.
Should I be downloading "OTA zip" or" oxygenOS 3.2.6 full zip"
Click to expand...
Click to collapse
OTA = on the air update // for upgrading your android version e.g. OOS 3.2.6 --> 3.2.8 // NOT for solo installation!
You can either use OOS 3.2.6 or the very awesome Open Beta 7 (Don't be irritated because there is "OTA" in the filename, both are complete roms)
These are full roms officially from OnePlus.net and I'm pretty sure that they will work together with TWRP 3.0.2-22.
I suppose you simply used the wrong files. Could you tell me where you downloaded the files?

LS.xD said:
OTA = on the air update // for upgrading your android version e.g. OOS 3.2.6 --> 3.2.8 // NOT for solo installation!
You can either use OOS 3.2.6 or the very awesome Open Beta 7 (Don't be irritated because there is "OTA" in the filename, both are complete roms)
These are full roms officially from OnePlus.net and I'm pretty sure that they will work together with TWRP 3.0.2-22.
I suppose you simply used the wrong files. Could you tell me where you downloaded the files?
Click to expand...
Click to collapse
i literally downloaded those files you linked to me and still no luck. it shouldn't be a problem that I'm using android file manager to transfer the rom over to my phone right? I'm going to wipe everything and go to stock recovery and use adb push to flash stock rom. any other suggestions you got?

Anyone please? I've rooted moto g 1st and 4th grn so it's not the fact that I'm being a complete noob. I've downloaded the modified twrp flashed 3.2.6, beta 7 and cyanogenmod. No luck on anything.

jasj0410 said:
Anyone please? I've rooted moto g 1st and 4th grn so it's not the fact that I'm being a complete noob. I've downloaded the modified twrp flashed 3.2.6, beta 7 and cyanogenmod. No luck on anything.
Click to expand...
Click to collapse
Use this guide and try both methods.
http://forum.xda-developers.com/oneplus-3/how-to/guide-mega-unbrick-guide-hard-bricked-t3405700

tnsmani said:
Use this guide and try both methods.
http://forum.xda-developers.com/oneplus-3/how-to/guide-mega-unbrick-guide-hard-bricked-t3405700
Click to expand...
Click to collapse
thanks for your reply. i managed to fix it. the other guy's link for a modified twrp didn't work (the custom recovery not the link) so i downloaded another and ended up installing beta 7 which worked. for future reference the link (mega unbrick) you provided me would that work with a mac?

jasj0410 said:
thanks for your reply. i managed to fix it. the other guy's link for a modified twrp didn't work (the custom recovery not the link) so i downloaded another and ended up installing beta 7 which worked. for future reference the link (mega unbrick) you provided me would that work with a mac?
Click to expand...
Click to collapse
I doubt that though there is no specific info on this .

How to flash official nougat without wiping internal storage?

Hello all!
I am currently on OOS 3.2.8, and official TWRP. I have read all the instructions on the forums but all lead to one option, formatting internal memory. So, my question are:
1. Will flashing oos 4.0 work with official TWRP or 8 have to use modified 28 version?
2. How can I flash oos 4 with modified TWRP and not have to wipe internal memory?
I would appreciate all the responses. Thanks

I was the same predicament as you. I finally took the plunge and now I have Nougat running on my OP3. Here is what I did :
Start: OOS 3.2.8 w/ custom kernel and modified TWRP
1. Flash stock recovery (Google for a forum post in the OP3 forums on downloading the stock recovery and flash it through fastboot)
2. Reboot and let 3.2.8 start
3. Download Snap VPN and change the country to Canada. You will be prompted for the system update.
4. Let the update download (~1 GB)
5. Install the update. You may see an error of the installation may fail as your phone is rooted. Ignore and go ahead.
6. The installer will now boot to stock recovery and reboot with Nougat. All settings and apps will be maintained
The only catch is that you may have ext4 instead of f2fs. I am okay with it for now... But your mileage may vary
All the best!

Edit : Nougat running on my op3.

abhibnl said:
Hello all!
I am currently on OOS 3.2.8, and official TWRP. I have read all the instructions on the forums but all lead to one option, formatting internal memory. So, my question are:
1. Will flashing oos 4.0 work with official TWRP or 8 have to use modified 28 version?
2. How can I flash oos 4 with modified TWRP and not have to wipe internal memory?
I would appreciate all the responses. Thanks
Click to expand...
Click to collapse
Are you rooted? Are you encrypted? What file systems are you using for your partitions? You're not giving full information. Why is formatting not an option if it'll give you the results you want?

To get to F2fs (I do recommend it)
Take a backup of your Data partition. , copy it to your pc with "adb pull /sdcard/Twrp/whatever".
Now go to Twrp>Wipe>Advanced select data and click on change file system. Change it to F2fs. Now restore your backup (Reader the guide all info is there). Profit!

anshulajain said:
I was the same predicament as you. I finally took the plunge and now I have Nougat running on my OP3. Here is what I did :
Start: OOS 3.2.8 w/ custom kernel and modified TWRP
1. Flash stock recovery (Google for a forum post in the OP3 forums on downloading the stock recovery and flash it through fastboot)
2. Reboot and let 3.2.8 start
3. Download Snap VPN and change the country to Canada. You will be prompted for the system update.
4. Let the update download (~1 GB)
5. Install the update. You may see an error of the installation may fail as your phone is rooted. Ignore and go ahead.
6. The installer will now boot to stock recovery and reboot with Nougat. All settings and apps will be maintained
The only catch is that you may have ext4 instead of f2fs. I am okay with it for now... But your mileage may vary
All the best!
Click to expand...
Click to collapse
I don't have any issues with ext4, infact i do feel ext4 is more stable than f2fs so file system is my last concern. Thanks for your method, but then how did u root again? Installing nougat is fine but what after that? I have read that you can't use modified twrp without formatting internal memory first, as it'll show you the pin issue. Let me know how do you propose a safe method to achieve root.
Renosh said:
Are you rooted? Are you encrypted? What file systems are you using for your partitions? You're not giving full information. Why is formatting not an option if it'll give you the results you want?
Click to expand...
Click to collapse
Yes i am encrypted, rooted, stock OOS 3.2.8 + Franco kernel. Official TWRP(not modified). I am using ext4, never used f2fs at all. The time to backup data and then to restore it all back is the reason formatting is not an "preferred" option for me. I can do it, but i would have to wait until i find enough time to do the whole process. I am in a full time job, so i hope you would understand.
Puddi_Puddin said:
To get to F2fs (I do recommend it)
Take a backup of your Data partition. , copy it to your pc with "adb pull /sdcard/Twrp/whatever".
Now go to Twrp>Wipe>Advanced select data and click on change file system. Change it to F2fs. Now restore your backup (Reader the guide all info is there). Profit!
Click to expand...
Click to collapse
Well this again defeats the purpose of my original question, but thanks mate. I would definitely read the guide if decide to switch to f2fs.

@abhibnl. BTW your encrypted. So the modified TWRP won't work.
How to fix:
Wipe Userdata with Fastboot / fastboot erase UserData
Boot into Twrp modified twrp.
Flash OOS 4.0 flash SuperSU and let it boot
You should be decrypted DO NOT install a boot password since you will be encrypted again.

I haven't rooted my phone again. My only reason to root is to install Adaway to block all ads. With DNS66 and Adguard, I have little incentive to root my stock nougat install.
Edit : I had encryption during 3.2.8 and it carried over to 4.0

Puddi_Puddin said:
@abhibnl. BTW your encrypted. So the modified TWRP won't work.
How to fix:
Wipe Userdata with Fastboot / fastboot erase UserData
Boot into Twrp modified twrp.
Flash OOS 4.0 flash SuperSU and let it boot
You should be decrypted DO NOT install a boot password since you will be encrypted again.
Click to expand...
Click to collapse
Thanks a lot for informing me mate. I really don't want to decrypt my storage as of now. I guess flashing stock recovery is the only solution now. Will hope someone would pick up the twrp and update it.

anshulajain said:
I haven't rooted my phone again. My only reason to root is to install Adaway to block all ads. With DNS66 and Adguard, I have little incentive to root my stock nougat install.
Edit : I had encryption during 3.2.8 and it carried over to 4.0
Click to expand...
Click to collapse
Seems like stock recovery is the best way as of now. Seems like I'll have to love without root until someone updates twrp to support encrypted storage.

I haven't updated to Nougat yet, but I looked over Chainfire's SuperSU changelog and its installation script and both of them confirm that from March installing SuperSU prevents forced encryption. Also many guides suggest installing it as way for disabling forced encryption. Of course you have to flash SuperSU just after flashing ROM, before booting the system.

abhibnl said:
Hello all!
I am currently on OOS 3.2.8, and official TWRP. I have read all the instructions on the forums but all lead to one option, formatting internal memory. So, my question are:
1. Will flashing oos 4.0 work with official TWRP or 8 have to use modified 28 version?
2. How can I flash oos 4 with modified TWRP and not have to wipe internal memory?
I would appreciate all the responses. Thanks
Click to expand...
Click to collapse
Very simple indeed...
1. Switch on wifi
2. Download OTA and click install whem finished
3. Once installation completed, flash twrp .28 and latest su
4. Reboot and ignore any errors, youwill beup and running fine...

Zielony360 said:
I haven't updated to Nougat yet, but I looked over Chainfire's SuperSU changelog and its installation script and both of them confirm that from March installing SuperSU prevents forced encryption. Also many guides suggest installing it as way for disabling forced encryption. Of course you have to flash SuperSU just after flashing ROM, before booting the system.
Click to expand...
Click to collapse
That i already knew mate. But i WANT my storage to remain encrypted. And that's the issue with modified TWRP. You can't enter into recovery on that if your storage is encrypted.
kpmohamedhussain said:
Very simple indeed...
1. Switch on wifi
2. Download OTA and click install whem finished
3. Once installation completed, flash twrp .28 and latest su
4. Reboot and ignore any errors, youwill beup and running fine...
Click to expand...
Click to collapse
Again, "You can't enter into recovery on modified TWRP if your storage is encrypted." So i won't be able to enter into twrp in the first place, let alone flash anything.

abhibnl said:
Hello all!
I am currently on OOS 3.2.8, and official TWRP. I have read all the instructions on the forums but all lead to one option, formatting internal memory. So, my question are:
1. Will flashing oos 4.0 work with official TWRP or 8 have to use modified 28 version?
2. How can I flash oos 4 with modified TWRP and not have to wipe internal memory?
I would appreciate all the responses. Thanks
Click to expand...
Click to collapse
In the same boat as you. I have OOS 3.2.8 encrypted, rooted and TWRP 3.0.2-1.26. I too would like to update but have way to much stuff on my phone to back it all up and restore it. Hope you or someone come's up with a solution. I will be following your thread.
Thanks.

Go to twrp. Press backup. Select only data. Save to PC youre backup for safety..
3.2.8 it's Android 6, 4.0 it's Android 7. Some apps might not work from base to base.
If you want to change to F2FS it will format youre phone, wipe phone full internal memory. If you want to change it back to ext4, same.
Clean flash, full wipe it's always better.

dmoses1969 said:
In the same boat as you. I have OOS 3.2.8 encrypted, rooted and TWRP 3.0.2-1.26. I too would like to update but have way to much stuff on my phone to back it all up and restore it. Hope you or someone come's up with a solution. I will be following your thread.
Thanks.
Click to expand...
Click to collapse
My suggestion (and my steps are in #1), install stock recovery, install snap VPN, download the update and install (ignore any errors on root). Once done, you will have Nougat with stock recovery, encryption maintained and all app data also intact.

anshulajain said:
My suggestion (and my steps are in #1), install stock recovery, install snap VPN, download the update and install (ignore any errors on root). Once done, you will have Nougat with stock recovery, encryption maintained and all app data also intact.
Click to expand...
Click to collapse
This is the last resort brother. With this method, unfortunately I won't have any root available. The only way now is to wait for updated twrp.

abhibnl said:
This is the last resort brother. With this method, unfortunately I won't have any root available. The only way now is to wait for updated twrp.
Click to expand...
Click to collapse
I dont know. I found this on Oneplus forum. May be worth trying. Just not 100% sure.....

Thanks! Will try and let you know

abhibnl said:
Thanks! Will try and let you know
Click to expand...
Click to collapse
Well, I tried something, waiting on it to finishing booting and see how it went.
I flashed twrp-3.0.2-1.28-oneplus3p version,
Flashed the OnePlus3Oxygen_16_OTA_035_all_1612310359_e10cadfb2af7.zip inside TWRP,
Flashed SR1-SuperSU-v2.79-SR1-20161221223537.zip right after flashing OTA zip.
Its rebooting and says Android is upgrading. Fingers crossed.
EDIT: Its booted and I am on Nougat, didnt lose my data and phone is still encrypted!
Edit: Ended up having issues with settings app locking up. So, I went a different route and its all working great now.
Downloaded the stock recovery image and renamed it to recovery.img
Make sure after you rename it its not named recovery.img.img, If you have show file extensions enabled on your pc you should already see the file extension.
Rebooted to bootloader - adb flash recovery recovery.img
Using the volume keys and power button selected - reboot recovery.
Now in stock recovery - flashed OnePlus3Oxygen_16_OTA_035_all_1612310359_e10cadfb2af7.zip
After rom is done flashing, went right back into bootloader. Did not let my phone reboot to start the OS.
Renamed twrp-3.0.2-1.28-oneplus3p.img to recovery.img
adb flash recovery recover.img
Powered off phone and Manually boot it into recovery by holding Power + Volume Down button.
Phone booted into TWRP
Flashed SR1-SuperSU-v2.79-SR1-20161221223537.zip
Wiped cache / dalvik
Rebooted system from TWRP and waited. System is really smooth now, no issues yet. Been playing with it for awhile now.
During the booting up process it might take a minute and it will reboot twice. Dont get nervous like I did thinking it was going to start bootlooping. It booted just fine. I read in a nother thread that SuperSU is what causes it to boot twice.
So......Now I have OOS 4.0 Nougat, Rooted, Encrypted and everything seems to be working fine.

Help on bootloop Moto G5

Hi guys I got bootloop in my moto g5. First I got "failed to mount /data", now the phone boots in unlocked warning screen then says "erasing" then reboots and start over again.
Before the procedure my actions was:
- I got OTA update
- inserted a microSD
- unlocked bootloader
- boot on TWRP 3.1.0
- backup to microSD
-install TWRP
as shown by bootloader screen, my model is "cedric XT1672 32GB P5", M8937_8000.122.02.45R CEDRIC_BRAZILDSDS_CUST.
What I don't understand is why TWRP don't restore, as a made a backup before the procedure.
I appreciate if somebody could help me out!

I had the same problem. Wiping /data corrupted my partition table or system partition.
You need to flash the system and / or the partition table via fastboot from the extracted stock rom (see the other thread arround here, make sure you use the right link (cedric, not the potter one)
-> boot to fastboot
fastboot flash system system.sparsechunk.0
fastboot flash system system.sparsechunk.1
...
It should boot normally afterwards, but probably twrp is gone / twrp has no access to your /data again. See the twrp thread, i'm facing the same issue. But at least the phone works again - without root
Greetings,
Chris

-> boot to fastboot
fastboot flash system system.sparsechunk.0
fastboot flash system system.sparsechunk.1
Click to expand...
Click to collapse
Did not work for me!

I hope you flashed all the system files?
Otherwise try to flash the full stock rom via fastboot. There are tons of guides explaining

Help NPP25.137-33 It doesn't work filefactory
.sirhc said:
I hope you flashed all the system files?
Otherwise try to flash the full stock rom via fastboot. There are tons of guides explaining
Click to expand...
Click to collapse
Help with stock NPP25.137-33 someone who has it in google driver to download

Got it back I, like you said! The first time I think I got any of those system file corrupted!!
I just dont know until when it gonna be good cos I am going to root this s.. now!
thks

linsspinho said:
Got it back I, like you said! The first time I think I got any of those system file corrupted!!
I just dont know until when it gonna be good cos I am going to root this s.. now!
thks
Click to expand...
Click to collapse
// already found how to root. won't do it right now as there are no success stories

Please help me save my phone

FAILED (Do not allow to flash Bootloader image on Unlock device) & TWRP - Failed to mount '/firmware' (invalid argument)
I'm using the Lenovo p2a42 32gb 3gb version (India)
My phone is stuck in fastboot mode. Bootloader is unlocked.
I have the latest twrp - 3.2.2.0 as recovery.
I flashed everything except the modem and bootloader to stock.
Bootloader & modem wont flash - cannot flash unlocked bootloader error.
I have tried everything I can think of:
1. Restore to stock 7.1 (cannot flash bootloader error)
2. Relock Bootloader (not allowed error)
3. Even gave my phone to a repair guy as last resort.
No luck yet.
Its 17000 bucks worth.
And has been laid to waste due to my ****up.
I really want to repair it myself if possible.
Please help me if you can. I'm open to any and all ideas.
Thanks in advance.

Alright mate,
Download this HERE
Extract it.
Boot phone into bootloader/fastboot mode.
Connect it via cable.
Run flashall - stock reco.bat and wait until it is done. Your phone will reboot on its own.
Gimme some details if it doesn't work. Don't worry, it'll be fine.#
Also: NEVER RELOCK THE BOOTLOADER VIA COMMAND, that is a sure-way to **** it up much more.

sm00th4f3 said:
Alright mate,
Download this HERE
Extract it.
Boot phone into bootloader/fastboot mode.
Connect it via cable.
Run flashall - stock reco.bat and wait until it is done. Your phone will reboot on its own.
Gimme some details if it doesn't work. Don't worry, it'll be fine.#
Also: NEVER RELOCK THE BOOTLOADER VIA COMMAND, that is a sure-way to **** it up much more.
Click to expand...
Click to collapse
https://forum.xda-developers.com/lenovo-p2/help/stuck-bootloop-reboots-15-holding-power-t3837278
would it work for me?

LeonDsouza123 said:
https://forum.xda-developers.com/lenovo-p2/help/stuck-bootloop-reboots-15-holding-power-t3837278
would it work for me?
Click to expand...
Click to collapse
Seems like you have a faulty battery or something on your hardware side.
Fun fact: getting into recovery(twrp) is done via Fastboot since the button combo is a ***** and isn't reliable. The timing is too stupid done.
The one team rescue files always work as long as you're in Fastboot/bootloader mode.
It's worth the try

I can't thank you enough @sm00th4f3
You are my saviour. It worked perfectly & my phone is working now.
Thank you sooooo much & keep up the good work.

MadMelman said:
I can't thank you enough @sm00th4f3
You are my saviour. It worked perfectly & my phone is working now.
Thank you sooooo much & keep up the good work.
Click to expand...
Click to collapse
Glad it worked

I restored the stock firmware.
My phone boots to the start screen , after I select the language it's unable to detect or connect to the wifi or to the mobile network.
Therfore I cannot proceed to finish the setup.
TWRP shows a firmware error-
- failed to mount '/firmware' (invalid argument)
Please advice @sm00th4f3

MadMelman said:
I restored the stock firmware.
My phone boots to the start screen , after I select the language it's unable to detect or connect to the wifi or to the mobile network.
Therfore I cannot proceed to finish the setup.
TWRP shows a firmware error-
- failed to mount '/firmware' (invalid argument)
Please advice @sm00th4f3
Click to expand...
Click to collapse
You shouldn't restore stock firmware from backup.
After using rescue tool.
Setup your phone from zero.
Or skip through setup.
Reboot to bootloader.
Flash latest twrp 3.2.3 can be found on official website
Change data system format to ext4 if it's not already.
Wipe system, data, cache and dalvik
Flash custom ROM of your choice
Flash gapps
flash magisk for root if you need it
Wipe dalvik and cache
Reboot.
Setup phone.

sm00th4f3 said:
You shouldn't restore stock firmware from backup.
After using rescue tool.
Setup your phone from zero.
Or skip through setup.
Reboot to bootloader.
Flash latest twrp 3.2.3 can be found on official website
Change data system format to ext4 if it's not already.
Wipe system, data, cache and dalvik
Flash custom ROM of your choice
Flash gapps
flash magisk for root if you need it
Wipe dalvik and cache
Reboot.
Setup phone.
Click to expand...
Click to collapse
I followed your instructions. No luck yet.
After flashing the custom rom, the phone bootlooped.
I changed the data & system to ext4 , I get the failed to mount firmware error.
SCREENSHOT:
https://drive.google.com/file/d/1dhBIadnV-olRsWbQjeL8teoPCJeg2U2L/view?usp=sharing

MadMelman said:
I followed your instructions. No luck yet.
After flashing the custom rom, the phone bootlooped.
I changed the data & system to ext4 , I get the failed to mount firmware error.
SCREENSHOT:
https://drive.google.com/file/d/1dhBIadnV-olRsWbQjeL8teoPCJeg2U2L/view?usp=sharing
Click to expand...
Click to collapse
You really are new to this.
Use the rescue tool.
Let the phone boot.
Skip through setup.
Enable developer options.
Make sure and debugging is enabled.
Connect phone to pc.
Grant always access , which popups on phone.
Open a CMD, in the folder of your adb tools.
Use adb reboot bootloader.
Or use the button combo to get to bootloader /Fastboot mode
Flash twrp.
Boot twrp
Reboot to recovery twrp via reboot menu
Change file system of data to ext4
Reboot to recovery again via reboot menu in twrp.
Now use factory reset, then wipe system partition.
Flash custom ROM
Gapps
Magisk if wanted.
Reboot.
Wait max 10min.
Should work.

sm00th4f3 said:
You really are new to this.
Use the rescue tool.
Let the phone boot.
Skip through setup.
Enable developer options.
Make sure and debugging is enabled.
Connect phone to pc.
Grant always access , which popups on phone.
Open a CMD, in the folder of your adb tools.
Use adb reboot bootloader.
Or use the button combo to get to bootloader /Fastboot mode
Flash twrp.
Boot twrp
Reboot to recovery twrp via reboot menu
Change file system of data to ext4
Reboot to recovery again via reboot menu in twrp.
Now use factory reset, then wipe system partition.
Flash custom ROM
Gapps
Magisk if wanted.
Reboot.
Wait max 10min.
Should work.
Click to expand...
Click to collapse
I 'm new to this & I appreciate your help, but
I followed your instructions again yet the error remains the same.
My phone is not detecting any wifi or cellular data - so I cant proceed /skip the process of setting up my stock phone.
And when i flashed the custom rom, the firmware error shows up.
And believe me I've tried a lot, but it just wont work.
I've come too far to give up now, any suggestions?
Here is the screenshot:
https://drive.google.com/file/d/12VTE6xs1Kozg52DhQP3fgBbNeDptXz2j/view?usp=sharing

MadMelman said:
I 'm new to this & I appreciate your help, but
I followed your instructions again yet the error remains the same.
My phone is not detecting any wifi or cellular data - so I cant proceed /skip the process of setting up my stock phone.
And when i flashed the custom rom, the firmware error shows up.
And believe me I've tried a lot, but it just wont work.
I've come too far to give up now, any suggestions?
Here is the screenshot:
https://drive.google.com/file/d/12VTE6xs1Kozg52DhQP3fgBbNeDptXz2j/view?usp=sharing
Click to expand...
Click to collapse
Before flashing twrp.
Use Fastboot oem unlock
.
Try again without custom ROM this time .
I'm looking into it.

Still stuck at the start screen,
I might be wrong but here is what I think is wrong with the phone:
The modem just won't flash therefore no wifi or cellular data.
The firmware is corrupted.
Thanks for your continued support.

MadMelman said:
Still stuck at the start screen,
I might be wrong but here is what I think is wrong with the phone:
The modem just won't flash therefore no wifi or cellular data.
The firmware is corrupted.
Thanks for your continued support.
Click to expand...
Click to collapse
Hello, well i messed up my phone really bad. deleted the bootloader. Phone wasnt working. But then used blank flash to get things working again. Just that it only charges now when i run it in bootloader mode. Now what i think u can do is delete all partitions using fastboot. I dont know the terms or words to say, but you can try to delete all partitions and then flash them again and check. use the stock files or what you call those emmc, modem and those bin files that is used to flash via fastboot. It may help but can be risky. Well hope this makes any sense

Ryan Robert said:
Hello, well i messed up my phone really bad. deleted the bootloader. Phone wasnt working. But then used blank flash to get things working again. Just that it only charges now when i run it in bootloader mode. Now what i think u can do is delete all partitions using fastboot. I dont know the terms or words to say, but you can try to delete all partitions and then flash them again and check. use the stock files or what you call those emmc, modem and those bin files that is used to flash via fastboot. It may help but can be risky. Well hope this makes any sense
Click to expand...
Click to collapse
there is no need to erase your partitions.. Unless you want to brick your device for real.
But you can try it at your own discretion at risk.
i won't help any further since i don't know that much more concerning this kinda problem.
cheers

Fatal Error
MadMelman said:
I 'm new to this & I appreciate your help, but
I followed your instructions again yet the error remains the same.
My phone is not detecting any wifi or cellular data - so I cant proceed /skip the process of setting up my stock phone.
And when i flashed the custom rom, the firmware error shows up.
And believe me I've tried a lot, but it just wont work.
I've come too far to give up now, any suggestions?
Here is the screenshot:
https://drive.google.com/file/d/12VTE6xs1Kozg52DhQP3fgBbNeDptXz2j/view?usp=sharing
Click to expand...
Click to collapse
Hey buddy, I recently ran into same problem as yours. Have you found any working fix for this issue?
Please reply.