Rollback via usb? - Huawei P9 Lite Questions & Answers

Hi!
I want to rollback to android 6.
I have downloaded the the rollback and android6 with emui4.1(i think).
To use the update.app files I have to buy a micro sd card.
Is there a way to do this rollback via usb with the update.app files on my computer?
In project menu I have no other option than sdcard update.
My p9 lite is original and updated to build vns-l31c432b380.
Best regards

Related

Easy and safe way to go back from gingerbread

1. Download official rom from here http://www.huaweidevice.com/worldwi...d=toDownloadFile&flay=software&softid=NDE5NDQ=
2. Extract the zip file and put the DLOAD folder to the external sd card.
3. Go settings, Locations & security settings
4. Choose Install from SD card
Your phone now is like new.
P.S.
To install custom rom you will need root and clockworkmod.

[Q] trying to install gingerbread, but is stuck at pink screen

I try to install the gingerbread on my Ideos x5 pro because I recently received "The blue screen of death" on it. It occured when i installed a 2.5.7 rom ontop of stock 2.2.2 firmware and couldnt boot. I then went into CWM and deleted cache, Dalvik etc and deleted to much obviously...
The problem is that I tried everything but when I hold the volume UP, volume DOWN and power, It will only go to pink screen and not "upgrade" screen ...
I have dload folder on my SDCard but it still does not work, I could install the first update.app but not the others Please help me!
Regards
Did you format your sdcard before putting dload in it?
Sent from my U8800 using Tapatalk 2
Yeah, i formated it into fat32 format before i put dload folder into it and i dont have any other file on it
Take battery out and boot with USB connected.
Sent from my U8800 using Tapatalk 2
Qqqxxxzzz said:
Take battery out and boot with USB connected.
Sent from my U8800 using Tapatalk 2
Click to expand...
Click to collapse
Didnt work, still pink screen I pressed volym UP + volym DOWN and while holding it in i connected the USB, still nothing. Those it matter if the USB is connected the PC or the charger?
Tried with the USB connected to both charger and PC, still didnt work
Downloaded 2.2.2 official update but still got the problem that it only shows the pink screen. I cant understand why i could install step1 of the upgrade but not step2 I need to get this phone back to life guys, i only had it for a week
Update: Okay i searched around the internet and found out that if the phone cant find the sdcard it goes into pink screen and the solution is to put "dload" folder inside of the INTERNAL sdcard. Anyone got a way of doing this with my current problem? when i connect the ideos to the PC with the usb it only goes into blue screen and the "image" folder comes up exactly like i boot into pink screen :s
if ur issue is still alive, try 512mb card, instead of 1gb or more.
In my case it works. To upgrade stock from sd.
Update: Okay, i returned the phone to the company i bought it from and it ended with a new phone and 50% cheaper price ;D
They sayed it was a connector to the screen that broke lols xD
Help me please!
Fillingen90 said:
Update: Okay, i returned the phone to the company i bought it from and it ended with a new phone and 50% cheaper price ;D
They sayed it was a connector to the screen that broke lols xD
Click to expand...
Click to collapse
I have the same not-upgrade problem
I tried with the Official B512 and the official B521
With B512, I managed to do the first step.
Then, I copied the new UPDATE.APP from step with, (I did not delete the log file).
NOTE: I Just copied that file. Should I rename it to update_g.app?
I went into pink screen, no update.
I formated the card, tried again nothing.
I copied the dload folder in the internal SD, nothing.
Restored defaults (unfortunately).
I tried the B521 update.app nothing.
Generally, I cannot upgrade and I am furious with myself because I lost all my personal data and the customizations because the backup did not stored data (for example, where on earth is the Lama files stored?)
s91066 said:
I have the same not-upgrade problem
I tried with the Official B512 and the official B521
With B512, I managed to do the first step.
Then, I copied the new UPDATE.APP from step with, (I did not delete the log file).
NOTE: I Just copied that file. Should I rename it to update_g.app?
I went into pink screen, no update.
I formated the card, tried again nothing.
I copied the dload folder in the internal SD, nothing.
Restored defaults (unfortunately).
I tried the B521 update.app nothing.
Generally, I cannot upgrade and I am furious with myself because I lost all my personal data and the customizations because the backup did not stored data (for example, where on earth is the Lama files stored?)
Click to expand...
Click to collapse
I managed to found the English PDF and thus, to apply the correct procedure, which is to:
Create a dload directory in your SD card (it's not important if it is the internal or the external. If you use the internal card, make sure that NO external card is installed.
Insert the update.app file from Step 1
Rename the update.app from Step 2 to update_g.app and copy it to the dload folder of your SD card
Update the phone.
It cant mount sd card, i cant format sd card and now i have blue screen error. By mistake i deleted everything I made a file image and put amss.mbn
boot.img
EMMCBOOT.MBN
recovery.img
to in it but still cant oopen phone What will i do?

Software Rollback Guideline [FRD-LO2 USERS] FROM EMUI 5.0 TO 4.1

This thread is about How to Downgrade from EMUI 5.0 to EMUI 4.1
From b301 to b140
Pre-Conditions:
· Make sure that the Micro SD card is available with enough free space and can be read and write.
· Make sure that the power of the battery is enough to run the Rollback process. It is recommended that the power of the battery is more than 30%.
Note: Rollback operation will erase all user data. You should backup all important data on an external SD card before Rollback.
Force downgrade:
Precondition:
Format the Micro SD card (This operation is optional).
Procedure for Force downgrade:
Step 1 Flashing Transfer_package):-
· Create a dload folder to the root directory of microSD card.
· Download the Software UPDATE.APP: http://bit.ly/2gDph3S and copy it to the dload folder.
· Make sure your handset is power off. Press the VOLUME UP and VOLUME DOWN key, and then press the POWER key to power on the phone and enter the Software Upgrade Mode.
· When the progress bar stops, the phone will go in the Recovery mode.
· Let the device be in recovery mode. Now, remove the SD card and delete the old dload folder present in the sdcard and make a new dload folder with the UPDATE.APP in it.
· Copy the entire dload folder: http://bit.ly/2gjSi3X(with UPDATE.APP in it- Main_Update) to the root directory of the Micro SD card and inset it in your device (Honor8).
· Now, continue to follow Step 2 Flashing Main_update)
Step 2 Flashing Main_update):-
· In Recovery mode, press the VOLUME UP and VOLUME DOWN key, and then press the POWER key to power on the phone and enter the Software Upgrade Mode.
· When the progress bar stops, the phone will restart automatically.
· The phone is downgraded successfully to the M version.
To check the version: Go to settings-> About phone-> Build number-> FRD-L02C675B140.
It Helped me a lot
Extracted From club.hihonor.com Hope This thread will Help YOu

Large files

Hi,
Everytime I try to transfer big files from my laptop larger than appx 1.1 gb to my P9 lite VNS-L31, there is an i/o error or the transmission stalls/fails.
Tried different usb-cables and usb-ports. I need to use fastboot to flash a large img-file. Is there any way to flash from external SD-card instead? I would move the file from the machine to the phone via a card-reader.
Best regards....
It will only send 1.71 gb then it stalls both on laptop and recovery. I have to reboot recovery.
Hope someone has a tip. Just installed HiSuite for newest usb drivers.

How to root Honor 8 Lite PRA-LA1

Hi there,
I have honor 8 Lite PRA-LA1 EMUI 8.0 and I want to root my device so I can transfer apps from internal storage to SD card due to low storage. I don't wan to use One-Click root or KingoRoot and i am unable to find any guide to root device manually from start.
Can anyone help me?
hey i want root me too do you find a method ??
No one?

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