[Q&A] Flashing stock ROM using TWRP - ZenFone 2 Q&A, Help & Troubleshooting

does TWRP able to flash a stock rom?
if it possible, will it cause any problem?
my device is rooted and using stock rom (planning to flash CM)

a) if you have twrp installed, then just backup before flashing any other roms, then factory reset and restore to go back to factory if needed.
b) you can flash OTA with twrp, and I ma pretty sure full stock roms too. See this guide. There is a thread on xda too, but I don't have it bookmarked.
I hope that answers your question.
P.S.
Remember that you have to unlock bootloader for TWRP, and if you want to use OTA function on stock rom with TWRP you need to fully unroot first.

@DiGecko
Thank you very much

Related

[Q]Want to SIM-unlock

So upon searching, I've found that I need to be on a stock or stock-based ROM to unlock (using this method: http://forum.xda-developers.com/showthread.php?t=2176719&highlight=unlock )
I'm currently on CM10.1 nightlies, so obviously I need to get to a stock or stock-based ROM in order to do this. Again, searching led me to this thread: http://forum.xda-developers.com/showthread.php?p=33570269#post33570269
This allows me to use ODIN to flash stock touchwiz.
My question is this: is there an easier way to get to an appropriate ROM than using ODIN? It's been approximately a year since I've last used it, and I would prefer to just flash a ROM like I would a new CM nightly. Which ROMs are suitable for me to flash which will allow me to SIM-unlock my phone?
Also, if I make a nandroid, flash the stock ROM, unlock, then restore the nandroid, will I keep the unlock? Or is the best way about doing this: wipe data/cache, flash stock ROM, unlock, wipe data/cache, flash CM?
Thanks in advance!
thelakeshow said:
So upon searching, I've found that I need to be on a stock or stock-based ROM to unlock (using this method: http://forum.xda-developers.com/showthread.php?t=2176719&highlight=unlock )
I'm currently on CM10.1 nightlies, so obviously I need to get to a stock or stock-based ROM in order to do this. Again, searching led me to this thread: http://forum.xda-developers.com/showthread.php?p=33570269#post33570269
This allows me to use ODIN to flash stock touchwiz.
My question is this: is there an easier way to get to an appropriate ROM than using ODIN? It's been approximately a year since I've last used it, and I would prefer to just flash a ROM like I would a new CM nightly. Which ROMs are suitable for me to flash which will allow me to SIM-unlock my phone?
Also, if I make a nandroid, flash the stock ROM, unlock, then restore the nandroid, will I keep the unlock? Or is the best way about doing this: wipe data/cache, flash stock ROM, unlock, wipe data/cache, flash CM?
Thanks in advance!
Click to expand...
Click to collapse
Look in Android Development for any modded TW ROM and flash that.
I have the same question. waiting for someone to help.

What is the proper way to restore custom rom back to stock?

So I have a Sm-t700 running on cm12 with twrp custom recovery and I want to go back to kitkat stock rom. Is it as simple as just using odin to flash the stock rom or do I need to do anything else, just want to avoid bricking my device thanks in advance.
The best way to return to kit kat is like you say. Using Odin and a proper stock rom; before that don't forget previously make a full wipe through recovery

Freegee problem

Hello guys
I cant install cwm recovery on my e980 using the freegee app. Can anyone help me with that issue
See the attached files
laith1234 said:
Hello guys
I cant install cwm recovery on my e980 using the freegee app. Can anyone help me with that issue
See the attached files
Click to expand...
Click to collapse
Two options:
1) flash back to stock 4.1.2, root and install cwm via freegee
2) install gpro_recovery.apk from forums, flash recovery from there, update that dinosaur (I think it's 6.0.4.4) to something newer (Philz, which is slightly newer or latest TWRP available) and profit.
Thanks again shadi
But u mean to flash the gpro recovery using odin? (The old familiar way)?
Odin is for Samsung devices Which option confuses you?
I cant access the recovery mode so how can i flash the gprorecovery?
You download an APK called GPRO recovery, install it, and flash from there. After that, update recovery and enjoy.
To be honest with you, better option is to return back to Jellybean and start from there, possible less problems (wakelocks, deep sleep, battery drains etc.)
I did what ShadySquirrel said myself, It took a lot of looking and reading. Used the LG flash tool to go back to 4.1.2 then used I believe easy universal root where you connect the phone to the pc with charge only chosen under pc connections, then on the pc you run the bat file and it tells you what to do and roots the phone, checked root with a root checker app then used FreeGee to install cwm and twrp. So far so good. Good luck like I said it took a lot of reading.
Many thanks again for both of you...
ShadySquirrel said:
You download an APK called GPRO recovery, install it, and flash from there. After that, update recovery and enjoy.
To be honest with you, better option is to return back to Jellybean and start from there, possible less problems (wakelocks, deep sleep, battery drains etc.)
Click to expand...
Click to collapse
shady i have an inquiry, do you recommend to go back to jellybean and then update the phone through the air? OTA update? or you mean to go back to JB and then start rooting and installing recovery?
as i understood from what you recommend is to go back to JB and then root and install recovery, but you mean to stay on JB??? and if not what i will get from returning back to JB, root and install recovery as im going to upgrade again to KK?
laith1234 said:
shady i have an inquiry, do you recommend to go back to jellybean and then update the phone through the air? OTA update? or you mean to go back to JB and then start rooting and installing recovery?
Click to expand...
Click to collapse
laith1234 said:
as i understood from what you recommend is to go back to JB and then root and install recovery, but you mean to stay on JB??? and if not what i will get from returning back to JB, root and install recovery as im going to upgrade again to KK?
Click to expand...
Click to collapse
Depending on what you plan to do.
If you want to use any non-stock based ROM out there (CM, Bliss, Slim etc.) it's better to return back to stock 4.1.2, root, flash recovery (Freegee + new TWRP after that) and start flashing. This way, you have great chances to avoid random wakelocks, problems etc. , which are typical for moving from stock 4.4.2 to any other ROM.
If you want to keep using stock ROM, well, you're in a problem because freegee doesn't support Kitkat, so you'll have to root, install GPRO_recovery.apk, flash it's recovery and then try flashing recovery from freegee or try flashing new twrp. If you want to stay on stock 4.1.2, then it's the previous cycle (root, Freegee, twrp update) and that's it.
If you decide to use stock roms, DON'T install OTAs, you'll get a soft brick because of custom recovery.
ShadySquirrel said:
Depending on what you plan to do.
If you want to use any non-stock based ROM out there (CM, Bliss, Slim etc.) it's better to return back to stock 4.1.2, root, flash recovery (Freegee + new TWRP after that) and start flashing. This way, you have great chances to avoid random wakelocks, problems etc. , which are typical for moving from stock 4.4.2 to any other ROM.
If you want to keep using stock ROM, well, you're in a problem because freegee doesn't support Kitkat, so you'll have to root, install GPRO_recovery.apk, flash it's recovery and then try flashing recovery from freegee or try flashing new twrp. If you want to stay on stock 4.1.2, then it's the previous cycle (root, Freegee, twrp update) and that's it.
If you decide to use stock roms, DON'T install OTAs, you'll get a soft brick because of custom recovery.
Click to expand...
Click to collapse
many many thanks for this explanation, but i decided to stay in stock KK, so i maybe in a little problem, so i will stay in KK and root my device without installing the recovery, then i will be OK
Many thanks again,,,,

[Solved] Doubts about flashing Elementalx

Sorry for the noob question, I posted this on the Elementalx thread more than a week ago but it's still unanswered and I'm quite sure that the question has already been posted but I just don't have the time to go through almost 600 pages of info...to be able to flash this kernel is it necessary for my phone to be rooted? I know that I need a custom recovery and b/l unlocked.
And when I flash this kernel what's first, the kernel or the ROM? Links to the info are fine.
Any help is appreciated.
EDIT: I'm on stock Lollipop b/l unlocked and not rooted. Everything is stock.
Maybe because your questions are too basic so no one want to reply.
1. You need unlocked bootloader & custom recovery like TWRP
2. Not necessary rooted if you don't want to root it and stay non-rooted. (but to revert to stock for OTA (when it involves changes to kernel), you need to flash stock boot.img & its kernel modules prior to OTA - basically restore non-rooted nandroid backup)
3. ROM first then kernel.
4. Lollipop kernel for lollipop ROM
ckpv5 said:
Maybe because your questions are too basic so no one want to reply.
1. You need unlocked bootloader & custom recovery like TWRP
2. Not necessary rooted if you don't want to root it and stay non-rooted. (but to revert to stock for OTA (when it involves changes to kernel), you need to flash stock boot.img & its kernel modules prior to OTA - basically restore non-rooted nandroid backup)
3. ROM first then kernel.
4. Lollipop kernel for lollipop ROM
Click to expand...
Click to collapse
OK. Thanks for the reply.
1.- This is done. I've flashed latest TWRP (3.x)
2.- Could my nandroid backup work as a non-rooted backup or I'm having the wrong idea on this?
3.- OK. Got it.
4.- Once I update to MM, can I flash the MM kernel of Elelmentalx?
1. --
2. as long as the backup is made prior rooting, it is a non-rooted backup
3. --
4. yes
@ckpv5
Thank you for the help you've given me so far. People like us here would invite you to a couple of beers after so much help given. But I'll drink to you and for you instead.
really,...thanks.

Go back to Stock ROM from Custom ROM

Hey everyone. I'm having some troubles with every custom ROM I install on my S3 T-Mobile (d2tmo) so I want to come back to Stock ROM. I've been watching some tutorials, but lot of them are pretty old, and none is for the Galaxy S3.
So, what do I need to do to go back to Stock ROM?
Should I do a full wipe from recovery (TWRP) and then flash stock ROM via Odin?
The custom ROM I flashed is 6.0.1. The phone had 4.3 when I flashed the custom ROM.
Am I right about what I think I should do?
Thanks in advance. :good:
Yep. The firmware you'll use in Odin should be a .tar.md5 file.
Just flash the latest stock rom from sammobile.com using Odin. No need to do anything before flashing the stock ROM.
After flashing the stock ROM, immediately boot into recovery and perform a factory wipe.
audit13 said:
Just flash the latest stock rom from sammobile.com using Odin. No need to do anything before flashing the stock ROM.
After flashing the stock ROM, immediately boot into recovery and perform a factory wipe.
Click to expand...
Click to collapse
tonytien said:
Yep. The firmware you'll use in Odin should be a .tar.md5 file.
Click to expand...
Click to collapse
Thank you very much for answering my questions guys! Everything turned out ok!
But I have a doubt about a little think that I hope you could help me.
Before flashing the stock rom I was planning on backing up my efs folder from the TWRP,version 2.8.70 for my s3 (d2tmo), but when I try to do a backup, there no "EFS Folder" option, however, on my other phone, a Galaxy Note 3 Exynos Variant (International Version) when I try to perform a backup there is a EFS folder option for backing up. It is also a TWRP recovery, and same version. 2.8.7.0. I know the phones are completely different, but, why if I'm using the same custom recovery and same version I can't do a EFS Folder backup from the backup option?
I hope I made myself clear about my question. Sorry for my English BTW, it is not my first language.
Thanks in advance!
Maybe this will help although it requires root: http://forum.xda-developers.com/s6-edge-plus/development/updating-t3210266

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