Database Users

Fix Balong, Downgrade from 6.0 and switch to DUAL SIM

Model Number : ALE-L21
Build number : BalongC52B311
Emui version : 4.0
Android version : 6.0
Nothing seems to work, I can't two-step downgrade, installing stuck at 5%. Some custom ROMs for fixing Balong also stuck at 5% and I can't even switch to DUAL SIM, software failed.
Can anyone help me?
Best regards

Flash B052 via Fastboot and install a vendor Update package for EU version

I have the same issue. I have looked here : http://consumer.huawei.com/at/mobile-phones/support/downloads/p8lite-at.htm but cannot find the B052. Do I need to flash the "Huawei_P8 Lite Dual SIM_Rollback package" ? And which .img do I need to flash? Do I need an unlocked bootloader and also root?
Thanks!!!

olafd72 said:
I have the same issue. I have looked here : http://consumer.huawei.com/at/mobile-phones/support/downloads/p8lite-at.htm but cannot find the B052. Do I need to flash the "Huawei_P8 Lite Dual SIM_Rollback package" ? And which .img do I need to flash? Do I need an unlocked bootloader and also root?
Thanks!!!
Click to expand...
Click to collapse
I resolved my problem thanks to this http://forum.xda-developers.com/p8lite/general/guide-debranding-converting-single-sim-t3305977. You need to open the bootloader first, but DON'T ROOT. Just open the bootloader. It's preferable to downgrade first (because you can lose your IMEI if you downgrade from 6.0 suddenly too much in one change). Here is the link for downgrading http://huaweifirmware.com/huawei-p8-lite or this http://forum.xda-developers.com/p8lite/general/rollback-official-android-6-0-beta-6-0-t3358565. Then you just follow the guide of the first link. Download C432B132, extract it, fastboot. Then you fix the balong bug. Now you have DUAL SIM without Balong. Then it's just about what Android version you want. You can stay on that firmware, OTA to newer a finally flash to Android 6.0. (If normal flash is not working, failed software update like it was with me, stuck at 5%, then use that fastboot with bootloader, I successfully installed new firmware with that method everytime)

Thanks. I will look at the second link you provided. First wait for the unlock code for the bootloader.

Sideload Marshmallow from Lolli 1.17.40.1106

Hi all,
needing help upgrading to MM.
I'm stuck on 1.17.40.1106 since I unlock the bootloader I can't receive further updates.
I've read that to be able to upgrade to MM you need to have .1531 firmware but since I'm stuck, can I sideload MM 21.40.1220 from Lolli 1.17.40.1106?
I have TWRP installed but not rooted.

First if you want sideload u must in "STOCK recovery"
And Seccond if you want update to MM u must have final firmware of LL. Go to asus.com check ur firmware version, If you are using last LL u just download MM firmware copy to sdcard and go to recovery-->apply update from sd card-->choose firmware MM and wait it update
.....
Dont flash firmware of asus.com if u use custom recovery it will brick your phone....

Thanks Val.
I'm having status 7 error both in stock recovery and twrp, another reason why Im stuck.
What are my options?

anyone?

stockdiordna said:
Hi all,
needing help upgrading to MM.
I'm stuck on 1.17.40.1106 since I unlock the bootloader I can't receive further updates.
I've read that to be able to upgrade to MM you need to have .1531 firmware but since I'm stuck, can I sideload MM 21.40.1220 from Lolli 1.17.40.1106?
I have TWRP installed but not rooted.
Click to expand...
Click to collapse
you have twrp but no root? how does that work?
in any case, the Terms of Service of the Asus unlock tool says you will not be able to get OTA update after using. We have confirmed that the unlock tool communicates with Asus when you use it - we highly suspect it sends your phone information to Asus to prevent official OTA.
I would root phone and install ROM.
check this out for issue of installing official MM update with TWRP:
http://forum.xda-developers.com/zen...ne-2-laser-t3399441/post67336853#post67336853

Thanks Eric.
I was reading the links you gave and have this questions:
1. Is it true that if I use custom recovery (TWRP) to sideload official firmware my phone will be bricked?
2. If I do "fastboot erase system" and flash full official firmware such as 1.17.1531, will it erase the custom recovery and go back to stock?
This way I can manually upgrade to MM once in stock recovery.

stockdiordna said:
Thanks Eric.
I was reading the links you gave and have this questions:
1. Is it true that if I use custom recovery (TWRP) to sideload official firmware my phone will be bricked?
2. If I do "fastboot erase system" and flash full official firmware such as 1.17.1531, will it erase the custom recovery and go back to stock?
This way I can manually upgrade to MM once in stock recovery.
Click to expand...
Click to collapse
1)i think twrp will not flash the official firmware, like if you downloaded it from Asus or got the ota .zip.
2) i do not know that command but it scares me to look at it.
in the thread i linked to, was answer to y question about flashing the official MM stock image.

[Guide] Safely unlock bootloader on official MM

UPDATE: This is now unneeded because threr is a faster way ro unlock bootloader on official MM here, he updated for official MM
Hi, I discovered an unlock method for official MM!! This maybe long but's it totally safe
You need:
Adb and fastboot environment ready PC
LP RAW File
Android 6.0 Beta Unlock tool
Android 5.0 One-Click Unlock tool
First version of beta MM (Z00A) (Z008)
Official MM zip (find it on Asus site)
Thanks to all people upload these links
Just do the following:
Flash the lastest LP via AFT (using raw file given above), wipe all data. If you already on MM, you have to downgrade
Unlock your bootloader using 1 click tool given above
Boot to stock recovery and sideload the first version of beta MM
Unlock the bootloader using MM beta unlock tool above
Boot to stock recovery
Two case here:
Case 1: You can't boot stock recovery
Normally boot your phone (to Android)
Setup it as a new phone
If it shows there is a new firmware, don't update!!!
Enable Developer options, then enable usb debugging
Copy the official MM zip to external sd card
Open command prompt, run adb reboot recovery, accept the adb permission if prompted
After it boots to recovery, select Apply update from SD, then choose the zip file you've copied before
Wait for it to update, it may stuck at flashing splashcreen, don't worry, it's trolling you, may be Asus forgot to update the script
Goto step 7
Case 2: You can boot stock recovery
Sideload the official MM zip (adb sideload <filename>.zip)
Goto step 7
7. Flash this TWRP (fastboot flash recovery <twrp>.img)
8. Root your phone using this method
9. Reboot, if it shows "Your phone has failed verification bla bla..", then you've success. It may reset loop like note 7 in the first time start, don't worry.
9. Enjoy :highfive:
Note: If you're facing with battery problems on MM, factory reset it in Settings > Backup and Reset > Factory Reset > Erase everything
Successfully on my ZE550ML
The warning screen is normal so don't worry and there is no way to fix it for now

Reverse

Reverse #2

Please answer this I have a unlocked Bootloader + twrp Intalled + root, now I am really confused that after upgrading to MM will my Bootloader get automatically lock or what
Sent from my ASUS_Z00A using XDA-Developers mobile app

NiTesh said:
Please answer this I have a unlocked Bootloader + twrp Intalled + root, now I am really confused that after upgrading to MM will my Bootloader get automatically lock or what
Sent from my ASUS_Z00A using XDA-Developers mobile app
Click to expand...
Click to collapse
Yes, BL will be relocked once you upgrade to MM.
If you want to unlock MM BL(6.0), refer to this thread.
Or you can downgrade to Lollipop referring to this thread. Then your BL(5.0) is unlocked.

Upgrade to MM
Hello folks!
2 week before MM was released i'ved opted to unlock my ZE551ML BL and therefore install twrp and a MM custom ROM..
so here´s the thing i stayed with the ROM for about 3 weeks and honestly..it works very well..but when i knew that 6.0 official was coming out i decided to go back to stock..i did it following manny tuturials avaliable for me to get my BL Re-Locked..but unsuccessfully..so i followed mr_gourav2000 tuturial (http://forum.xda-developers.com/zenfone2/development/stock-rom-ul-z00a-ww-2-20-40-168-t3354526) and reverted to the WW_Z00A-2.20.40.183-to-2.20.40.184 (hopefully i can get the sshot in this post) version...since my BL is unlocked i can´t get no updates..my question is:
Is there anyway to go to MM 6.0 by ASUS with the current status of my phone?
is there anything i can do to revert this??
Cheers to everyone
https://www.dropbox.com/sc/xue7iuqfyvgdvo3/AAATR4mYtcHzM1IhfKbx2a1oa

R3D SoX F4N said:
Hello folks!
2 week before MM was released i'ved opted to unlock my ZE551ML BL and therefore install twrp and a MM custom ROM..
so here´s the thing i stayed with the ROM for about 3 weeks and honestly..it works very well..but when i knew that 6.0 official was coming out i decided to go back to stock..i did it following manny tuturials avaliable for me to get my BL Re-Locked..but unsuccessfully..so i followed mr_gourav2000 tuturial (http://forum.xda-developers.com/zenfone2/development/stock-rom-ul-z00a-ww-2-20-40-168-t3354526) and reverted to the WW_Z00A-2.20.40.183-to-2.20.40.184 (hopefully i can get the sshot in this post) version...since my BL is unlocked i can´t get no updates..my question is:
Is there anyway to go to MM 6.0 by ASUS with the current status of my phone?
is there anything i can do to revert this??
Cheers to everyone
https://www.dropbox.com/sc/xue7iuqfyvgdvo3/AAATR4mYtcHzM1IhfKbx2a1oa
Click to expand...
Click to collapse
Just download the update package and rename it to mofd_sdupdate.zip, copy it to internal storage. Then reboot to stock recovery, the update will automatically start. This should work if you have lastest stock recovery

can anyone please upload official recovery for Zenfone 2 ZE551ML, currenty i have twrp installed on Android version 5.0 LP Stock

HungNgocPhat said:
Just download the update package and rename it to mofd_sdupdate.zip, copy it to internal storage. Then reboot to stock recovery, the update will automatically start. This should work if you have lastest stock recovery
Click to expand...
Click to collapse
i have twrp recovery at the moment cause i followed mr_gouvad2000 tuturial..
what do you sugest?
flash WW_ZE551ML_2.20.40.196_20160815.raw?
WW_ZE551ML_2.20.40.194_20160713.raw?
and then go and do what you told?
cheers

hello, i cant find first mm beta for ml551...can you help me? thank you and sorry for my english

tridet18 said:
hello, i cant find first mm beta for ml551...can you help me? thank you and sorry for my english
Click to expand...
Click to collapse
someone correct me if i am worng but....
https://www.asus.com/Phone/ZenFone_2_ZE551ML/HelpDesk_Download/
Look for this version WW-4.21.40.134

Hello, thank you but this version is official, i need de first beta 6.0
R3D SoX F4N said:
someone correct me if i am worng but....
Look for this version WW-4.21.40.134
Click to expand...
Click to collapse

that version...i can´t find it anywere..maybe someone here knows were to find it?

Updated the first MM beta link in OP

hello , thanks to your tutorial I managed to unlock the bootloader , I have TWRP version 3.0.0.2 with stock installed but when I wanted to install CM13 and gapps I restarted the phone and automatically returns to recovery again. some help?

tridet18 said:
hello , thanks to your tutorial I managed to unlock the bootloader , I have TWRP version 3.0.0.2 with stock installed but when I wanted to install CM13 and gapps I restarted the phone and automatically returns to recovery again. some help?
Click to expand...
Click to collapse
Have you downloaded the correct build? There are build for MM bootloader, if you flash the normal builds, it will fail and reboot to recovery again. Gapps is the same for all builds
After you install that special build, do not update to newer nightlies, it will fail. For updates, check the link i give you and see if there is a new MMBL build.
About that, here is the post: http://forum.xda-developers.com/showpost.php?p=68542370&postcount=8551

hello friend, I tried to install the CM13 ROM that indicated me and I get Error 7 in TWRP 3.0.2.0, I have Android 6.0 (.134) official and if I can change kernel and flash rom SuperSU but change with a new MM Blows I can not (CM13, AICP, beanstalk ....) thanks for your help!

tridet18 said:
hello friend, I tried to install the CM13 ROM that indicated me and I get Error 7 in TWRP 3.0.2.0, I have Android 6.0 (.134) official and if I can change kernel and flash rom SuperSU but change with a new MM Blows I can not (CM13, AICP, beanstalk ....) thanks for your help!
Click to expand...
Click to collapse
Run the script again (i gave you in above post). Download the CM13 in that link, not in the OP of CM13 thread. Flash that CM13 and Gapps (Gapps is universal for MMBL and LPBL).
May be you have corrupt download, I'm currently running CM13 on MMBL

Hello, I have finally found the solution, the problem is the recovery, the TWRP 3.0.0.2 da failure with new builds, I Flashed next on the link you put me through adb and now it works, thank you very much for everything .

hlp
tridet18 said:
Hello, I have finally found the solution, the problem is the recovery, the TWRP 3.0.0.2 da failure with new builds, I Flashed next on the link you put me through adb and now it works, thank you very much for everything .
Click to expand...
Click to collapse
how u unlocked bootloader

Recovery unaviable after Nougat update

Hey people,
I've updated to the unofficial Nougat leak here and ever since I can't get into the recovery. The ROM is OK but no matter what I do I can't get into the recovery. After "adb reboot recovery" I just get stuck in a boot loop and I must get into the upgrade utility and restart phone into the system from there. I've tried to flash few other recovery but nothing works. So far I'm fine with the system and I'd like to also try LineageOS but I have no way to flash the ROM. I have tried "Fastboot flash zip xx.zip" from the bootloader to flash LineageOS but it told me I don't have permissions so it was no good.
So do you folks here have any idea what I did wrong and how to make the recovery work again? I'm kind of learn from the tutorial guy so I'll post the sources I've been using to do the flash.
Unlocking bootloader and flashing new recovery
I've only used the unlock bootloader and flash twrp sections with their provided recovery. I've also tried to flash THIS recovery by Meticulus after the nougat update.
Flashing the ROM + used ROM
Used the old process because upgrade with system utility kept giving me errors.
Model number - VNS-L21
Also if this issue can't be (yet) fixed do you know any way to safely flash ROMs without recovery?
Thanks for any kind of help

You cannot flash any ROM in the nougat recovery, because it does not support /data mounting. Downgrade to MM and install the ROM you want from there.

@SALVO9
Ok, thank you for the reply. I'll probably try to downgrade and flash it afterwards to know which ROM suits me better. All I need to do is find the stock ROM copy it to the phone and restart with all buttons pushed right? Also, do you have any info about when there will be a nougat recovery that can mount /data?

TheAstaros said:
@SALVO9
All I need to do is find the stock ROM copy it to the phone and restart with all buttons pushed right?
Click to expand...
Click to collapse
No.
Flash proper OEMinfo first!

@Schlengge
Thanks for the advice. I did my research because I didn't know a thing about oeminfo and I have hit a wall since my phone is not rooted(Should have mentioned that earlier I know) and I'm supposed to replace custom.bin and then flash the img. So afterwards I searched how to root this nougat ROM and found nothing no app was working and everything I found was just using the phone's recovery which I can't access. Does anything come to mind? I will continue getting through the pages of google but I don't think I'll find anything useful.
EDIT> After some searching I found the official rollback package. I have yet to test it (downloading on slow connection atm) and I hope it will work.

Ok it's finally done and I'm back at old stock ROM(EMUI 4.1.1 VNS-L21C432B160) after hours of searching I gave up on the oeminfo or rooting the phone. I searched for the stock firmware and found some rollback packages on the Huawei site. I will post the links in there you even have instructions packed with the zip.
LINK1
LINK2
Download both start with the smaller one because it's flashing first and follow the instructions in the pdf. Worked for me so hope it also helps you.
Also as I found out just now this rollback also locks back your bootloader so be sure to unlock it back again with the code.

b25 Update

I have a new (3 day) that updated to b25. Was and is totally stock. Not happy.
Mar was way better on battery and performance. I have downloaded and renamed
b15 factory ota and placed in the sdcard. System update reports a valid update but before I
commit to doing this I wanted to verify with the community that it is safe to do.
After I do this update I am wondering if I can find a factory ota of mar if I can do the same thing again.
Thanks in advance

2CanSan said:
I have a new (3 day) that updated to b25. Was and is totally stock. Not happy.
Mar was way better on battery and performance. I have downloaded and renamed
b15 factory ota and placed in the sdcard. System update reports a valid update but before I
commit to doing this I wanted to verify with the community that it is safe to do.
After I do this update I am wondering if I can find a factory ota of mar if I can do the same thing again.
Thanks in advance
Click to expand...
Click to collapse
It's really simple actually: if you install B15 your data will be wiped, after that just skip everything and update to B29 (is B29 the latest? I have a G, dunno) and then use it. What you describe is not the actual performance that it should have, it's your specific case obviously.

I know what you want to do - if you want to remain TOTALLY STOCK I think you are out of options as I don't know anywhere that you can still download the stock ZTE B29 marshmallow. If you are willing to unlock your bootloader and install TWRP then somewhere in here DrakenFX has a B29 rollback that works great - it just won't work with stock recovery

tabletalker7 said:
I know what you want to do - if you want to remain TOTALLY STOCK I think you are out of options as I don't know anywhere that you can still download the stock ZTE B29 marshmallow. If you are willing to unlock your bootloader and install TWRP then somewhere in here DrakenFX has a B29 rollback that works great - it just won't work with stock recovery
Click to expand...
Click to collapse
All I really want is to remain stock but rooted and with TWRP for recovery for Nandroid backups. The B25 will not let me unlock the bootloader with Fastboot and when running MiFlash the phone is visible but getting "Hello packet error" I have read another method with fastboot but have not tried it yet (below). Somewhere I read that B25 was the problem and you had to downgrade and the MiFlash method was recommended.
adb reboot bootloader
fastboot devices
fastboot oem unlock
fastboot reboot
I did everything but the first entry.
Thanks for any suggestions.

2CanSan said:
All I really want is to remain stock but rooted and with TWRP for recovery for Nandroid backups. The B25 will not let me unlock the bootloader with Fastboot and when running MiFlash the phone is visible but getting "Hello packet error" I have read another method with fastboot but have not tried it yet (below). Somewhere I read that B25 was the problem and you had to downgrade and the MiFlash method was recommended.
adb reboot bootloader
fastboot devices
fastboot oem unlock
fastboot reboot
I did everything but the first entry.
Thanks for any suggestions.
Click to expand...
Click to collapse
Go ahead with your rollback to B15 - that will let you unlock and install TWRP. Once you have TWRP go to this thread https://forum.xda-developers.com/axon-7/development/rom-guide-updates-to-stock-files-via-t3469484 and in post #2 you will find A2017UV1.0.0B29_RollBackModded.zip. Flash that, then flash TWRP again (you have to flash TWRP again ONLY if you want to keep TWRP as this flash file will automatically reinstall stock recovery). Also note on B29 I had to use SuperSU 2.65 (not the current one) for root.

tabletalker7 said:
Go ahead with your rollback to B15 - that will let you unlock and install TWRP. Once you have TWRP go to this thread https://forum.xda-developers.com/axon-7/development/rom-guide-updates-to-stock-files-via-t3469484 and in post #2 you will find A2017UV1.0.0B29_RollBackModded.zip. Flash that, then flash TWRP again (you have to flash TWRP again ONLY if you want to keep TWRP as this flash file will automatically reinstall stock recovery). Also note on B29 I had to use SuperSU 2.65 (not the current one) for root.
Click to expand...
Click to collapse
By the system update.zip method?
Thanks
Also I would be happy to stay at b15 with TWRP and root.

2CanSan said:
By the system update.zip method?
Thanks
Also I would be happy to stay at b15 with TWRP and root.
Click to expand...
Click to collapse
Wait - you wanted to stay stock? You didn't actually have to unlock if you wanted to. Just by using the update.zip method with some Marshmallow zip you could get to MM, and then you can update to N and you surely won't get the same problems that you've been having...
For example my G is on 7.1.1 and I get 6h+ of battery (right now, 3h36m with 41% left) so your problem is just that your installation was bad. If you unlocked you might as well just do the process that the guy above described though.

2CanSan said:
By the system update.zip method?
Thanks
Also I would be happy to stay at b15 with TWRP and root.
Click to expand...
Click to collapse
Choose an username... said:
Wait - you wanted to stay stock? You didn't actually have to unlock if you wanted to. Just by using the update.zip method with some Marshmallow zip you could get to MM, and then you can update to N and you surely won't get the same problems that you've been having...
For example my G is on 7.1.1 and I get 6h+ of battery (right now, 3h36m with 41% left) so your problem is just that your installation was bad. If you unlocked you might as well just do the process that the guy above described though.
Click to expand...
Click to collapse
OK on the A2017U units you need the official marshmallow B29 package to roll back, and that only works with stock recovery on a clean B15 N install. The Rollback package I told you to use earlier will roll you back to B29 marshmallow NO MATTER WHAT YOU ARE USING (I have used this a lot, and OBVIOUSLY there are differences between the the A2017U version in North America and the A2017G version in Europe). If you want stock and rooted, I personally recommend B29 marshmallow over B15 Nougat, but either way go for it (I think the marshmallow had a much better radio than any of the Nougat packages). If you are interested in TWRP and root, I found B29 marshmallow much easier for both, and the marshmallow version of android also gives you Xposed, but back to your first post, you mentioned wanting marshmallow, and this is the best way to get it.
Step by Step method
1. Roll back to B15. Use the update.zip method. It will factory reset your device so backup everything you can't lose
2. Use MiFlash to unlock and install TWRP - check that thread on XDA for instructions.
3. (If desired) In TWRP, install the B29 marshmallow rollback. Do not reboot into system afterwards.
4. (If step 3 is done) In TWRP, flash TWRP. The marshmallow rollback will overwrite recovery with stock recovery
If you do this you will have exactly what you wanted in your original post. I can personally tell you this works, as I have tried every custom rom on here and always wind up back at B29 marshmallow when all is said and done. It has never failed me, and it will never fail you either.