[Huawei P9 ROMs, Kernels, Recoveries, & Other Devel] Tecalote:
HWOTA zips for updating Stock or going back to Stock

Here is a very easy way going back from MagicRaibow-v3 to original Huawei Firmware with HWOTA.zip - but you have to do it with the right steps!

Note: To go back from MRv3 → to Stock b394, you can use the Download Files and this Guide. For other Firmwareupdates, you find a Guide here. It is described, how you can use this method simple by yourself: https://xdaforums.com/showpost.php?p=75787156&postcount=3

Credits:

Many thanks to [MENTION=4081738]Atarii[/MENTION] for special Recovery - without this it would not possible!

Users can go back from this ROM to original Huawei Firmware with following steps - you dont need Unroot !

You have no risk to test this ROM and can easy go back to Stock. It should work from every Stock based Custom Rom.

It worked also from RROS -> Stock b394

https://xdaforums.com/showpost.php?p=75155089&postcount=314

It can also be used to upgrade from Stock b386 -> Stock b394

Note:

1) If you had first Stock Firmware b395 - and had installed after MRv3 ROM and want later go back to Stock Firmware - you must use the b395 HWOTA.zip. You cannot directly update to b397 or b398! That would fail! Thats why you use first b395 HWOTA.zip, after b397 HWOTA.zip and at last b398 HWOTA.zip

2) If you had first Stock Firmware b386 - and had installed MRv2 and later directly flashed MRv3 (over MRv2 without updating the Firmware) - you must use the b394 HWOTA.zip. After you can update to b397 and in the next step to b398. You cannot update from b394 directly to b398 - that would fail!

The right steps of flashing HWOTA.zips are dependend on which official Firmware you had installed before using my Rom (or any other).

b386 -> b394 -> b397 -> b398 (b397 and b398 only for L09 and L19 c432 at the moment) or:

b395 -> b397 -> b398

If your bootloader get closed (this is for example the case if you update from b386 to b394) you must reopen the bootloader and then phone makes low-lewel-wipe factoryreset. It is important that this reset is 100% successful - if not, you must perform this kind of reset manually (before delete all your pins, fingerprints and Accounts like Google, WhatsApp, Skype etc:

settings -> advanced settings -> backup & reset -> Factory data reset -> Erase internal storage -> Reset phone (internal storage will be wiped!)

Guide:

0. Make Backup of your stuff and copy folders from internal Storage to a folder on external SD (WhatsApp folder, DCIM, Pictures, Downloads...) Be sure in Developer Options is 1) ADB Debugging in charging mode and 2) USB Debugging enabled and of course 3) OEM Unlock (should be enabled by default if you are using Custom Rom)

1. Download right HWOTA.zip for your Device and Cust - unzipp it on PC - you have now unzipped HWOTA folder

2. Copy

unzipped

HWOTA folder to the

main directory

of your EXTERNAL SD (dont place it in subfolders!)

3. HWOTA folder contains 3 Files:

A) Folder with number (it is the

correct Number of Firmware-Version

) Inside are 3 zipped Firmware-Files - dont touch it, dont unzipp it!

B) EVA_xxx_nocheckrecovery.img

C) hwota_update.zip

4. Boot to TWRP and navigate to the HWOTA folder and flash hwota_update.zip

5. Screen become black and in a view seconds Stock Recovery is flashed and Firmware is loaded

6. EMUI Software Installing installs now the originial Firmware, wait until it is 100% and device will reboot

7. Go to settings /advanced settings/ Backup and restore and do a Factoryreset with wipe of internal Storage

8. Soon Factoryreset is finished and device begin to reboot, press Vol+ on your Phone to boot into Stock Recovery instead of system

9. Make Wipe Cache Partition!

10. Now you have clean original Stock Huawei Firmware and if a OTA is avialable - you can do it without problems (but SIM must be inserted) :cowboy:

Note: During the Upgrade - the Firmware zips inside the unzipped HWOTA folder on external SD will be deleted by Stock Recovery (unzipped folder can be used just onetimes) - if you decide to use it again in another situation keep the downloaded zip....

Downloads for L09:

EVA-L09-c432 b394 HWOTA.zip: [url]https://www.androidfilehost.com/?fid=817906626617956737[/URL]

MD5: 895923ee5d8e4de7dedf9d96b84cd388

EVA-L09-c185 b394 HWOTA.zip: https://www.androidfilehost.com/?fid=745849072291700568

MD5: b249285cfa6a75d46bb937d9f6c342b0

EVA-L09-c636 b394 HWOTA.zip: https://www.androidfilehost.com/?fid=962157660013071602

MD5: e76c5edcb0401cd993fa1f46262beaa5

Downloads for L19:

EVA-L19-c432 b392 HWOTA.zip: [url]https://www.androidfilehost.com/?fid=962157660013070163[/URL]

MD5: 9813212ef8933df637402fab137fb9d3

EVA-L19-c185 b394 HWOTA.zip: https://www.androidfilehost.com/?fid=962157660013070477

MD5: 99883e7f2c351ed36755dd04c45be347

EVA-L19-c636 b394 HWOTA.zip: https://www.androidfilehost.com/?fid=962157660013070988

MD5:d2bd88a021fc280672d26e223a0a29cb

Downloads for L29:

EVA-L29-c636 b394 HWOTA.zip: https://www.androidfilehost.com/?fid=673791459329073605

MD5: 87b4ea112660ec70fee1dc407ccb957e

The latest Firmware for EVA-L09 - EVA-L19 - EVA-L29 Cust c636 is b395 - is available as FullOTA-MF-PV version - you can flash it directly with TWRP

1) You need three zips:

A) Update.zip

B) Update_data_full_public.zip

C) Update_full_EVA-Lxx_hw_spcseas.zip - it must match the EVA model you have - EVA-L09 or EVA-L19 or EVA-L29

2) You flash in this order:

A) Update.zip

- dont boot to system - flash

B) Update_data_full_public.zip

- dont boot to system - flash

C) Update_full_EVA-Lxx_hw_spcseas.zip

- dont boot to system - go back to main menu and use restart - but: RECOVERY

3) In Stock Recovery make A) Wipe Cache Partition and B) Factoryreset - after reboot P9

Note: internal storage get wiped with this method - so backup everything you need from internal storage, before updating your Firmware with this method!

Download:

Update.zip: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1864/g1755/v114776/f1/full/update.zip

Update_data_full_public.zip: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1864/g1755/v114776/f1/full/public/update_data_full_public.zip

From the next zips you need only one (the right one) for your device:

Update_full_EVA-L19_hw_spcseas.zip:http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1864/g1755/v114776/f1/full/EVA-L19_hw_spcseas/update_full_EVA-L19_hw_spcseas.zip

Update_full_EVA-L29_hw_spcseas.zip: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1864/g1755/v114776/f1/full/EVA-L29_hw_spcseas/update_full_EVA-L29_hw_spcseas.zip

Update_full_EVA-L09_hw_spcseas.zip: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1864/g1755/v114776/f1/full/EVA-L09_hw_spcseas/update_full_EVA-L09_hw_spcseas.zip

German Guide:

[url]https://www.android-hilfe.de/forum/root-custom-roms-modding-fuer-huawei-p9.2808/huawei-p9-rom-android-7-0-emui-5-0-1-magicrainbow-v3-by-tecalote.859343.html#post-10819769[/URL]