[Huawei P9 Guides, News, & Discussion] edmun:
Ehh..

After one day of a fight I am finally on B395.

I was starting long time ago from a branded phone (UK's network called Three).

I have debranded the phone, unlocked bootloader, installed B182 and next by HiUpdate and System update I went to EVA-L09C432B378.

However after this one - nothing .

No further automated updates.

Probably I wouldn't even know that there is anything newer, but found on one persons blog that his camera app looks slightly different then mine (he had beauty button at the top of the camera app where I did not have it).

So yesterday I have decided that I would like to update higher.

First, I have used the firmware finder and attempt to installl B383 as it was described as one without any issues.

Some people were describing it as the one which consumes a lot of energy.

By using dnd update or proxy update, each time it was failing in the bootloader.

At the end, I have downloaded two files manually from the website and used the dload method.

So the phone went fine to EVA-L09C432B383.

Again - I wanted something newer, so used firmware finder to try to go to EVA-L09C432B383 using the 2017.05.03 2.316GB FullOTA-MF-PV file with dns and proxy method but this has failed as well.

Tried many times (at least 10 :D ).

As read on xda, I have found that going from 383 to 386 by dload is not a good method as I would loose calendar and themes.

The method to go back to 182 and then to 386 was not good for me, as I would have to reinstall everything including unlocking bootloader (? can't be sure, someone would have to confirm) so I would probably have to wipe the phone and reinstall everything.

About an hour ago I have started again firmware finder and this time, I have used the DNS method to update to 2017.04.28 1.949GB FullOTA-MF (not PV) and this one went through without any issues.

Now I will be thinking how to proceed even further to B394.

edit: small update. In the meantime when I was reading this thread, I have found notification in the top bar that there is a new update to install. Opened, found Huawei stock update app saying that EVA-L09C432B390 is ready to be installed.

Looks like it just was downloaded by OTA without me doing anything. That is some good sign.

Will check if it will go higher by itself.

What I have written above worked fine for myself so far and don't see any issues.

So from 378 to 383 by dload.

Then from 383 to 386 full-ota-mf (not PV) by firmware finder (on the phone) using dns

Same method which is to click register for update, change dns, start updating from Huawei update app and stop DNS after the updater started to download the files.

386 to 390 went automatically by system update (did not have to do any tricks on this update).

Will keep you posted with further progress.

edit2:

After 390 went by OTA, I can see that I have been prompted that 391 is ready as well.

edit3:

Another OTA by Huawei system app :) :

edit4: No more OTAs after 395.

Attempting to do 397 (and of course 398 straight after) by FirmwareFinder and DNS method.

edit5: at this particular time, I can't go any further. 397 and 398 are not going through in the Huawei update app when it tries to verify the update package. My IMEI is not approved to install this update.

Anyone tried to do 398 MF by dload method?

edit6: I am reading the HWOTA method from Telacote however it does involve TWRP and factory reset (and wiping cache). I guess that this is the only method to go from 395 to 397 and 398. Unfortunately I don't have a chance now to do a factory reset with wiping internal memory. Looks like 398 version will have to wait until my IMEI will be added.

Edit : update from 09.03.2018: my imei has been approved. In firmware finder the 398 2.4GB was accepted. Downloaded using the DNS method (with disconnecting DNS once download started) through 4G as it was quicker if using WiFi (despite "n" network and 40Mbit download speed). Currently on 398. Love the battery performance on 395, hope that on 398 will be the same