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Clean debranding P8 (GRA-L09)

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ArtZ

Senior Member
Jan 23, 2005
308
253
This is the only clean way to debranding your P8 with official Huawei update L09V100R001C900B170.

1. Download from Huawei Hungary the latest european version L09V100R001C900B170 : http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu

2. You will find in downloaded file 'D__documents_Temp_upload_GRA-L09C900B170CUSTC432D001-Europe.rar' two folders :
/CUSTOM
/dload

3. Copy both folders /CUSTOM and /dload forders with one update.app in each folder in your SD card

4. Shut down your P8

5. Press "Vol+" + "Vol-" + "Power" until your P8 vibrates

6. Update will start. If you have an operator ROM, you might get un error message at the end. Do not worry.

7. Turn on your P8 and configure it (don't need to create Google account or even to connect it to WiFi.

8. Open Huawei File Explorer and rename /dload folder containing update.app (2.91 Gb) to /dload.rom (or other name you fancy)

9. Rename /CUSTOM folder containing update.app (19Kb) to /dload

10. Repeat steps 4 to 7

11. Open Huawei File Explorer and rename /dload folder containing update.app (19Kb) to /CUSTOM

12. Rename /dload.rom folder containing update.app (2.91 Gb) to /dload

13. Repeat AGAIN steps 4 to 7

14. Open Huawei File Explorer and delete /CUSTOM and /dload folders from your SD card.

That's it. Your P8 bought from your operator will be now complete debranded with the latest European ROM

NB: Steps 10 to 13 (to reflash L09V100R001C900B170 after flashing the patch in /CUSTOM folder) are recommended to have a clean installation.
 

BUNNDOO

Member
Jun 23, 2008
9
3
Zagreb
please explain better

please explain better 1 and 2 better

This is the only clean way to debranding your P8 with official Huawei update L09V100R001C900B170.

1. Download from Huawei Hungary the latest european version L09V100R001C900B170 : http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu

2. You will find in downloaded file 'D__documents_Temp_upload_GRA-L09C900B170CUSTC432D001-Europe.rar' two folders :
/CUSTOM
/dload

3. Copy both folders /CUSTOM and /dload forders with one update.app in each folder in your SD card

4. Shut down your P8

5. Press "Vol+" + "Vol-" + "Power" until your P8 vibrates

6. Update will start. If you have an operator ROM, you might get un error message at the end. Do not worry.

7. Turn on your P8 and configure it (don't need to create Google account or even to connect it to WiFi.

8. Open Huawei File Explorer and rename /dload folder containing update.app (2.91 Gb) to /dload.rom (or other name you fancy)

9. Rename /CUSTOM folder containing update.app (19Kb) to /dload

10. Repeat steps 4 to 7

11. Open Huawei File Explorer and rename /dload folder containing update.app (19Kb) to /CUSTOM

12. Rename /dload.rom folder containing update.app (2.91 Gb) to /dload

13. Repeat AGAIN steps 4 to 7

14. Open Huawei File Explorer and delete /CUSTOM and /dload folders from your SD card.

That's it. Your P8 bought from your operator will be now complete debranded with the latest European ROM

NB: Steps 10 to 13 (to reflash L09V100R001C900B170 after flashing the patch in /CUSTOM folder) are recommended to have a clean installation.
 
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Jack_capvil

Senior Member
Nov 18, 2012
157
34
NAILLOUX (31)
@ BUNDOO

are there possibilities to make OTA updates after this install? I suppose that the answer is no, but can you confirm please?
And are there risks to have difficulties with the connectivity option? Some users noticed this issue after installing a new stock rom
 

ArtZ

Senior Member
Jan 23, 2005
308
253
@ BUNDOO

are there possibilities to make OTA updates after this install? I suppose that the answer is no, but can you confirm please?
And are there risks to have difficulties with the connectivity option? Some users noticed this issue after installing a new stock rom

If you change a branded operator P8 to unbranded just flashing the stock unbranded ROM, you will have problems. I can confirm that.

BUT if you install the latest stock ROM L09V100R001C900B170 http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu that includes a custom update from Huawei to install after the ROM, everything will be fine. Please note this is the official Huawei update center thus the ROM file is the official untouched ROM from Huawei

People who have problems with their branded P8 after flashing in the past a stock ROM, their phones will work flawless again.

Now, concerning future OTA updates, I cannot tell you because for the moment L09V100R001C900B170 is the latest update. As far as I know, you stop getting OTA updates ONLY when you flash an unbranded phone with an operator branded ROM.

My Bouygues Telecom P8 came with GRA-L09_V100R001C432B124CUSTC101D001. Now it's running flawless GRA-L09V100R001C900B170CUSTC432D001 which has many enhancements and stability over Bouygues ROM. Besides, I believe, in the future I will get more updates from Huawei for the European stock ROM than for the Bouygues ROM.
 
Last edited:
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brunsman6229

Senior Member
Sep 19, 2009
333
48
Anywhere
Artz, je ne suis pas débutant je bidouille depuis un petit moment les android mais c'est mon premier Huawei... peux tu s'il te plait me dire s'il y a un risque à effectuer la manipulation que tu as décrite.... car j'ai cru lire que certains l'ayant effectuée ont des problèmes réseau... encore merci de ton aide, bruno
 

ArtZ

Senior Member
Jan 23, 2005
308
253
Artz, je ne suis pas débutant je bidouille depuis un petit moment les android mais c'est mon premier Huawei... peux tu s'il te plait me dire s'il y a un risque à effectuer la manipulation que tu as décrite.... car j'ai cru lire que certains l'ayant effectuée ont des problèmes réseau... encore merci de ton aide, bruno

Bruno, as not everybody speaks French, I'll answer in English: You will not have any problem. If you follow the steps, everything will work. Your P8 will be completely debranded.

PS: Si tu es à Paris, tu peux me payer une bière ;)
 

zear4fear

Member
Nov 1, 2007
25
2
Update hangs

I come from b130 (Vodafone) and wanted to install the b170.
But the update hangs at 19%. Tried several times.
Any ideas? Or can i use another file? Is b192 available as full rom?

Thanks.
 

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  • 13
    This is the only clean way to debranding your P8 with official Huawei update L09V100R001C900B170.

    1. Download from Huawei Hungary the latest european version L09V100R001C900B170 : http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu

    2. You will find in downloaded file 'D__documents_Temp_upload_GRA-L09C900B170CUSTC432D001-Europe.rar' two folders :
    /CUSTOM
    /dload

    3. Copy both folders /CUSTOM and /dload forders with one update.app in each folder in your SD card

    4. Shut down your P8

    5. Press "Vol+" + "Vol-" + "Power" until your P8 vibrates

    6. Update will start. If you have an operator ROM, you might get un error message at the end. Do not worry.

    7. Turn on your P8 and configure it (don't need to create Google account or even to connect it to WiFi.

    8. Open Huawei File Explorer and rename /dload folder containing update.app (2.91 Gb) to /dload.rom (or other name you fancy)

    9. Rename /CUSTOM folder containing update.app (19Kb) to /dload

    10. Repeat steps 4 to 7

    11. Open Huawei File Explorer and rename /dload folder containing update.app (19Kb) to /CUSTOM

    12. Rename /dload.rom folder containing update.app (2.91 Gb) to /dload

    13. Repeat AGAIN steps 4 to 7

    14. Open Huawei File Explorer and delete /CUSTOM and /dload folders from your SD card.

    That's it. Your P8 bought from your operator will be now complete debranded with the latest European ROM

    NB: Steps 10 to 13 (to reflash L09V100R001C900B170 after flashing the patch in /CUSTOM folder) are recommended to have a clean installation.
    1
    please explain better

    please explain better 1 and 2 better

    This is the only clean way to debranding your P8 with official Huawei update L09V100R001C900B170.

    1. Download from Huawei Hungary the latest european version L09V100R001C900B170 : http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu

    2. You will find in downloaded file 'D__documents_Temp_upload_GRA-L09C900B170CUSTC432D001-Europe.rar' two folders :
    /CUSTOM
    /dload

    3. Copy both folders /CUSTOM and /dload forders with one update.app in each folder in your SD card

    4. Shut down your P8

    5. Press "Vol+" + "Vol-" + "Power" until your P8 vibrates

    6. Update will start. If you have an operator ROM, you might get un error message at the end. Do not worry.

    7. Turn on your P8 and configure it (don't need to create Google account or even to connect it to WiFi.

    8. Open Huawei File Explorer and rename /dload folder containing update.app (2.91 Gb) to /dload.rom (or other name you fancy)

    9. Rename /CUSTOM folder containing update.app (19Kb) to /dload

    10. Repeat steps 4 to 7

    11. Open Huawei File Explorer and rename /dload folder containing update.app (19Kb) to /CUSTOM

    12. Rename /dload.rom folder containing update.app (2.91 Gb) to /dload

    13. Repeat AGAIN steps 4 to 7

    14. Open Huawei File Explorer and delete /CUSTOM and /dload folders from your SD card.

    That's it. Your P8 bought from your operator will be now complete debranded with the latest European ROM

    NB: Steps 10 to 13 (to reflash L09V100R001C900B170 after flashing the patch in /CUSTOM folder) are recommended to have a clean installation.
    1
    @ BUNDOO

    are there possibilities to make OTA updates after this install? I suppose that the answer is no, but can you confirm please?
    And are there risks to have difficulties with the connectivity option? Some users noticed this issue after installing a new stock rom

    If you change a branded operator P8 to unbranded just flashing the stock unbranded ROM, you will have problems. I can confirm that.

    BUT if you install the latest stock ROM L09V100R001C900B170 http://download-c.huawei.com/download/downloadCenter?downloadId=49884&version=118243&siteCode=hu that includes a custom update from Huawei to install after the ROM, everything will be fine. Please note this is the official Huawei update center thus the ROM file is the official untouched ROM from Huawei

    People who have problems with their branded P8 after flashing in the past a stock ROM, their phones will work flawless again.

    Now, concerning future OTA updates, I cannot tell you because for the moment L09V100R001C900B170 is the latest update. As far as I know, you stop getting OTA updates ONLY when you flash an unbranded phone with an operator branded ROM.

    My Bouygues Telecom P8 came with GRA-L09_V100R001C432B124CUSTC101D001. Now it's running flawless GRA-L09V100R001C900B170CUSTC432D001 which has many enhancements and stability over Bouygues ROM. Besides, I believe, in the future I will get more updates from Huawei for the European stock ROM than for the Bouygues ROM.
    1
    désolé Artz je suis dans le nord de la france.... mais je te remercie beaucoup pour ton tuto... ;)
    1
    I come from b130 (Vodafone) and wanted to install the b170.
    But the update hangs at 19%. Tried several times.
    Any ideas? Or can i use another file? Is b192 available as full rom?

    Thanks.
    use the firmware of the post... it is working great... try to download it again