Heya, i'm not great with internal phone stuff! I need to downgrade my P9 security patch level from January 2019 to any older than September 2018 but i'm not rooted yet.
Would I need to root before I downgrade or is it possible without?
Phone is on android 7.0, EMUI 5.0.4
LukeRich said:
Heya, i'm not great with internal phone stuff! I need to downgrade my P9 security patch level from January 2019 to any older than September 2018 but i'm not rooted yet.
Would I need to root before I downgrade or is it possible without?
Phone is on android 7.0, EMUI 5.0.4
Click to expand...
Click to collapse
Btw, what do you want to achieve by downgrading Security patch (don't think it will help you unlocking Bootloader, actually P9 has an old Bootlader and can be easily unlocked regardless of Security patch date)
Find an older firmware (from 2018) for your cust that can be installed by DLOAD (in that case you don't even need the unlocked Bootloader) and the old Security patch will come with that older firmware.
Btw, with the newer firmwares Huawei did not change practically anything else but only updating the Security patch - hence find an older EMUI 5 for your cust and you will have the old Security patch
Instead of by DLOAD, you can also install that older firmware by TWRP but it requires the unlocked Bootloder (that is not root, and root is not needed)
P9 is an old phone and everything generic that you find in Q/A and Guides threads here on XDA will still apply - learn about unlocking Bootloder, what is DLOAD method, what are the custs in firmware names and why is that important (if you don't want to rebrand your P9 to another cust - or how to do that if you want), where to look for official firmwares (incl. old versions), whichnTWRP is compatible with P9 for EMUI 5, etc, etc.
Take few days to read and learn
Otherwise, community is mostly dead and hardly anybody will give you answers (unless you go for some custom ROMs where few users are still active)
I will also not guide you any further, I ended with my P9 two years ago, and generally with Huawei a year ago...
Good luck
Related
Hi,
End of January I bought a P10 SIM free from a major UK retailer.
It is stuck on March 1st 2017 updates, with no updates available.
I contacted Huawei support - they say my IMEI should be on B162. But I get no update OTA, and even through the HiSuite app it says I have latest.
They said I have to send the phone back for 2 weeks and they will factory reset and upgrade. This is unbelievable to me.
They told me if I use the firmware finder app I would void warrenty. But I thought if I do not root and install the authorised firmware version (B162) then they wouldn't know or it wouldn't be a problem.
I am a little confused by the number of different firmwares in the app, many with the same version number. How do I know which to use? What is the difference between OTA-MF and FullOTA-MF (from the sizes I guess full is full and other is incremental).
Will any of them get me back on the official upgrade path, or if I do this will it be manual updates forever from now on?
Do I have to root to install the firmware from firmware finder (I think not?)
I always thought people who focussed on stock android were silly, and I quite like EMUI but I am really regretting buying Huawei now.
thrope said:
Hi,
End of January I bought a P10 SIM free from a major UK retailer.
It is stuck on March 1st 2017 updates, with no updates available.
I contacted Huawei support - they say my IMEI should be on B162. But I get no update OTA, and even through the HiSuite app it says I have latest.
They said I have to send the phone back for 2 weeks and they will factory reset and upgrade. This is unbelievable to me.
They told me if I use the firmware finder app I would void warrenty. But I thought if I do not root and install the authorised firmware version (B162) then they wouldn't know or it wouldn't be a problem.
I am a little confused by the number of different firmwares in the app, many with the same version number. How do I know which to use? What is the difference between OTA-MF and FullOTA-MF (from the sizes I guess full is full and other is incremental).
Will any of them get me back on the official upgrade path, or if I do this will it be manual updates forever from now on?
Do I have to root to install the firmware from firmware finder (I think not?)
I always thought people who focussed on stock android were silly, and I quite like EMUI but I am really regretting buying Huawei now.
Click to expand...
Click to collapse
depending on your CUST code you'll have to claim contact to your brand... I mean if your rom is "customized" by the carrier is not only Huawei but also the carrier who has to work on the update the other option depending on your model is to Debrand and change the firm to L29C432 and get the updates of the official but be careful about bricks or Sim detection problems...read all threads talking about debranding and go ahead if you feel confident to avoid a brick
jcalderonv74 said:
depending on your CUST code you'll have to claim contact to your brand... I mean if your rom is "customized" by the carrier is not only Huawei but also the carrier who has to work on the update the other option depending on your model is to Debrand and change the firm to L29C432 and get the updates of the official but be careful about bricks or Sim detection problems...read all threads talking about debranding and go ahead if you feel confident to avoid a brick
Click to expand...
Click to collapse
Thanks. It is retail SIM free non-branded. Ie just bought from a store nothing to do with any carrier. I don't really understand the difference between L29 and L09. Mine shows L09 at the moment. Are they different hardware versions?
thrope said:
Thanks. It is retail SIM free non-branded. Ie just bought from a store nothing to do with any carrier. I don't really understand the difference between L29 and L09. Mine shows L09 at the moment. Are they different hardware versions?
Click to expand...
Click to collapse
Hardware is (almost) the same. L29 allows to use both sims in the sim tray.
Just to update.
I used Firmware Finder to install B186A update. Worked perfect and have January 2018 security patch level.
The more recent B185 firmwares are rollback firmwares for downgrading from Oreo. Check the release notes carefully and make sure you chose an upgrade firmware (not a rollback firmware) that is authorized for your IMEI. (For me B186 was not approved but B186A was).
None of the Oreo firmwares were authorized for my device.
thrope said:
Just to update.
I used Firmware Finder to install B186A update. Worked perfect and have January 2018 security patch level.
The more recent B185 firmwares are rollback firmwares for downgrading from Oreo. Check the release notes carefully and make sure you chose an upgrade firmware (not a rollback firmware) that is authorized for your IMEI. (For me B186 was not approved but B186A was).
None of the Oreo firmwares were authorized for my device.
Click to expand...
Click to collapse
Were you able to simply download the firmware from Firmware Finder and install directly? Were there any other steps you had to follow to do this correctly?
Reason i ask is that i am in same situation as you were. Purchased Sept 2017 via O2 in the UK, no updates at all (still on L90C432B113), contacted Huawei and O2 about Oreo with no possible updates and showing March 2017 Security Patch Level.
Getting sick of waiting and looking to move to Oreo as soon as possible.
Any tips would be helpful - thanks in advance.
gc1984 said:
Were you able to simply download the firmware from Firmware Finder and install directly? Were there any other steps you had to follow to do this correctly?
Reason i ask is that i am in same situation as you were. Purchased Sept 2017 via O2 in the UK, no updates at all (still on L90C432B113), contacted Huawei and O2 about Oreo with no possible updates and showing March 2017 Security Patch Level.
Getting sick of waiting and looking to move to Oreo as soon as possible.
Any tips would be helpful - thanks in advance.
Click to expand...
Click to collapse
Sorry for the delay getting back to you.
I was on B120 with a Serbia certified P10.
I installed B186A from Firmware Finder. (at the time I did it B185 was not approved). Its important to do the check with the IMEI number within the app to see if the firmware is signed for your device. I did the proxy method, where you set the proxy, pause download at 5%, unset proxy and it worked very smoothly.
I think the main thing is to make sure you chose an upgrade firmware and not a rollback firmware. They are not labelled clearly and the only difference is in the readmes so check carefully. There are a few more recent B185 firmwares which I found confusing, but they are for people who need to rollback from orea (and so reset the device).
A couple of days later I got Oreo B365 over the air (not through the app). Upgrade went very smooth.
Big improvement in battery life and overall performance better all round.
With Project Treble in place I hope updates will be quicker, and maybe even easy to install stock one day.
My P9 is currently running Nougat and I want to update to Oreo but in "About phone" it says I'm running Android 5.1 and EMUI 3.1 (I'm 99% sure I'm running Nougat). My phone is second hand and I've never rooted it but the last owner might've (if so then it got unrooted before it was sold). I have 4 months left on my warranty if it matters. Whenever I put update.app into a dload folder on my SD card I get an error at 5% when trying to update saying "Software install failed, Incompatibility with current version. Please download the correct update package." I use Firmware Finder to find the latest update and in "About phone" it says my build number is "EMUI-A168-L09C432B040SP11-log" so that's what version of updates I download. I don't get any OTA updates and Firmware Finder's DNC and proxy method don't work for me either. When downloading Nougat I did it manually (through dload) and I think it was some sort of beta or leaked version or something. I don't know what else to try but I just want Oreo on my phone. My bootloader isn't unlocked and my phone is definitely not rooted. I live in the UK so my phone is most likely from there too. What should I do or try?
Edit: I just tried updating my phone through Firmware Finder using the proxy but I get a package checksum error when I try
"Android 5.1 ... 99% Nougat" - Can you post the screenshot of your Settings/About (mask your IMEI) to see what are really your EMUI and Android versions. Also, scrolling down in About should show date (month, year) of the Google security patch - usually it means that Huawei built the ROM the same or next month.
You can also install from Google Play apps like My Device or DevCheck to see if they recognize it as Nougat
Googling for emui-a168-l09c432b040sp11-log finds that it was some early beta version (June 2016) for Android N, see eg (Chrome can automatically translate from Hungarian to English)
https://huaweiblog.hu/tag/emui-a168-l09c432b040sp11-log/
Frankly, I don't believe the phone under warranty was released with beta Nougat, rather that previous owner installed the beta (also I don't know is the phone covered by warranty with that beta N).
Look also to XDA, thread
https://forum.xda-developers.com/showpost.php?p=67931734&postcount=62
subsequent posts, how people who installed beta N (c432 cust or other custs like c900) went back to their official Marshmallow (or upgraded to official Nougat).
"tried updating my phone through Firmware Finder" - I don't find anything at all on Firmware Finder for EMUI-A168.
IMO, you cannot 'update' from your EMUI-A168-L09C432 to the regular EVA-L09C432 (good that it didn't brick your phone). Generally, going from one model/cust to another requires rebranding which is a whole different process, not just taking whatever ZIPs from Finder Finder and flashing them by DLOAD or by DNS/proxy in FF.
IMO, you must go back from your Beta N to official MM (from that time). Then (if it was EVA-L09C432) you will receive OTA updates to official N, or if necessary you will need to rebrand to eg c432 (since some other custs, like English Vodafone, got stuck at MM, there are no N builds for them).
Of course, rebranding (it voids the warranty), if necessary, requires to unlock the Bootloader.
Finally, Oreo is available only for Chinese cust, not even for European c432, and it requires (unlocking Bootloader and) HWOTA7 method, but for that you must first get rid of your Beta N (even rebrand if necessary - see above) to be able to start the HWOTA7 process towards the Chinese Oreo from some of the latest official Nougat builds, see
https://forum.xda-developers.com/p9/development/rebrand-update-tool-hwota7-p9-eva-t3820849
I'm not sure if HWOTA7 (that can be also used for updating Nougat builds ans rebranding from one Nougat cust to another) is applicable to your Beta N.
Try unlocking bootloader and use hwota7
sasi2006166 said:
Try unlocking bootloader and use hwota7
Click to expand...
Click to collapse
It's probably not even neccessary, it is already c432, it should be enough to flash c432 b182 by DLOADvto come back to c432 MM, and then OTA updates will bring him to the latest c432 b50x Nougat - no unlocking bootliader needed
To the other side HWOTA7 might be risky as it requires EMUI 5 and it's not sure is it there in that early Nougat beta build
zgfg said:
It's probably not even neccessary, it is already c432, it should be enough to flash c432 b182 by DLOADvto come back to c432 MM, and then OTA updates will bring him to the latest c432 b50x Nougat - no unlocking bootliader needed
Click to expand...
Click to collapse
Use hwota7 to update to oreo is more faster and have face unlock
sasi2006166 said:
Use hwota7 to update to oreo is more faster and have face unlock
Click to expand...
Click to collapse
HWOTA7 directly from that b040sp11 might be risky as HWOTA7 requires pure EMUI 5 and it's not sure is it there in that early Nougat beta build - therefore going back to MM c432 b182 is betrer (google, you will find people from that time doing so from that Nougat beta)
Once at b182, OTA will bring him to the latest c432 Nougat (his warranty will be back) and then if he wants he can unlock bootliader and use HWOTA7 to go to Oreo (without warranty anymore)
Here you find EVA-L09c432b182 and how to flash it
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
Only the following steps apply for you:
2, 11, 12, 13, 14, 15
With the small modification for step (11):
- ignore the first sentence "Go back to main menu and reboot your phone - but not to system. " since you are not coming here from TWRP
- instead, switch the phone off and then boot as in the second sentence "You must press Vol+ and Vol- (in the middle) down until EMUI Software Installing begin and b182 will flashed" and continue with the rest
Upon the OTAs as in step (15), you will have official c432 Nougat (and your warranty)
Later, it's up to you if you want to unlock Bootloader (4 Euros needed for the Bootloader code) and to upgrade to Oreo by use of HWOTA7 method
zgfg said:
Finally, Oreo is available only for Chinese cust, not even for European c432
Click to expand...
Click to collapse
Am I understanding that correclty, still no official (beta) Oreo for Europeans?
neuer31 said:
Am I understanding that correclty, still no official (beta) Oreo for Europeans?
Click to expand...
Click to collapse
What is not understood, there is no Oreo and there won't be for European, Mid East, etc custs
There is (official, no beta) but only for Chinese cust.
Using it, responding you from my P9 EVA -L19C432 rebranded to Chinese Oreo EVA-AL10C00B528
zgfg said:
What is not understood, there is no Oreo and there won't be for European, Mid East, etc custs
There is (official, no beta) but only for Chinese cust.
Using it, responding you from my P9 EVA -L19C432 rebranded to Chinese Oreo EVA-AL10C00B528
Click to expand...
Click to collapse
Oh okay, must have misunderstand it in the past then. I was under the impression that one day they release it for Europe aswell. Rebrand it is then
Thanks for confirming
Hi everyone.
I just bought a new Nokia 8, but it's on Oreo. I want to rollback to Nougat and root it.
However I saw many things here on xda and I fear to mess with my phone.
So first off all, here are some details of my Nokia 8 :
- Model TA-1012 (64GB/4GB RAM)
- Oreo 8.1.0
- Security update December 1, 2018
- Kernel version 4.4.78-perf+
- Build 00WW_4_88B_SP07
_______________________________________________
Downgrade :
I've downloaded 2 firmwares :
NB1-484A-0-00WW-B03.nb0
NB1-4390-0-00WW-B01.nb0
Problem 1 : I don't know if there are Nougat 7.1.1 firmwares, so if anyone can confirm it ? ALso is it good for TA-1012 model ?
Problem 2 : I also saw the same firmwares but with "QFIL" at the end of filename. What is that ? Is it necessary ?
Problem 3 : How to downgrade with firmware like these ?
Unlock Bootloader :
I know that I have to unlock my bootlader, but I heard that there is a critical mode, how to do it for my TA-1012 ?
I saw this topic but I don't think its about critical mode https://forum.xda-developers.com/nokia-8/development/official-nokia-8-bootloader-unlock-t3848051
ROOT :
How to ROOT my phone ?
_________________________________________________
Thank you in advance guys, I love that phone too much to brick it :laugh:
Why to you want to downgraded the phone? Is nougat better is performance or battery?
On all my phones, the most old firmware is always faster and less battery consumming than the last (I measured it).
But right now, I've succeeded to unlock my bootloader offficialy. However, when I tried to boot TWRP with Fastboot boot twrp.img, it's stuck on Android Logo Of course I can reboot my phone but I can't flash TWRP...
Is it becasue of 1st December update ? is it because bootloader isn't critical unlocked ? Or becasue of boot a & boot b partitions
Apparently it's because of December Security Patch...
Can I downgrade my phone to nougat to be able to root it ???
Hi, unfortunately my p10 drop on the floor from an high of 8 cm... Yes almost 4 in an the camera now has a strange yellow border. Of course this issue happens only on the color camera. The b/w camera works well.
The problem is that I have unlocked the bootloader. Can I do something to prepare the phone for rma?
I've the original oem info and of course the unlock code.
Thank you in advance
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
lukastob said:
Maybe downgrade to nougat and then ota update to oreo will help. When I made debrand had unlocked bootloader and frp. Then did ota update to oreo and now have bootloader and frp properly locked.
Click to expand...
Click to collapse
What guide should I follow for this?
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
lukastob said:
For debrand I used this guide:
https://forum.xda-developers.com/p10/how-to/huawei-p10-debrand-rebrand-update-guide-t3691013
but I was doing it on nougat and I am not sure how it works with downgrading from oreo to nougat.
If you are already on oreo (and C432 region) you could try to use this guide :
https://forum.xda-developers.com/p10/how-to/guide-manual-updgrade-to-update-oreo-t3758286
tutorial 2 to flash the first full-ota oreo 8.0.0.360 from: http://pro-teammt.ru/firmware-database
but here is question to @Jannomag if it's certain that the script will work from newer to older oreo version. If so then try to use HiSuite to downgrade to nougat (for .360 it should be possible when hit firmware update -> switch to other version) and finally do the ota update to oreo. Be aware that I am not absolutely sure it will work, just suppose it should.
Click to expand...
Click to collapse
Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
Jannomag said:
Downgrading to a lower version as Dec2018 security patches can be indeed a problem but this shouldn't cause a brick. The updated should fail flashing /kernel and /ramdisk from update files.
Click to expand...
Click to collapse
I tried to flash B365 oreo over B384 with tutorial 2, update started as usual then reached 100% and phone switched off totaly. Now looks like bricked, can't switch on, charging doesn't work, when connected to pc system shows unrecognized USB SER device. Is there any hope to unbrick it?
I have the same. Send to warranty and they fix this by replace the Motherboard. Now i can't unlock bootloader because no offical codes and DC unlocker not support newest security patch from Huawei. Otherwise Phone works fine and i have extra warranty to 2022 .
Hello. I have a Huawei P9 EVA DL00, on it EMUI 8.0.0 / Android 8.0.0. Is it possible to port the EMUI 9 firmware from Huawei P10 / Honor 9 or another device to our P9 on it. We have Kirin 955, and on the Huawei P10 / Honor 9 Kirin 960. Who can port?
It's is possible?!
mybe with gsi and erfans scipt
sGSI
different partition table...
P9 Eva l09 android 6.0
Hi everyone!
We are on 2019 lol and my eva-l09 didnt update any More, im stucked at android 6.0.
Any ideas? Im worried if I have to mannualy updated it because i have a bad experience with that.
I had before a gx8, ive mannualy updated the stock rom and like Many others i had no signal, so i did a flash to roll back and my fingerprint sensor stopped working (i couldnt Solve that)
Thanks!
marcod_9 said:
Hi everyone!
We are on 2019 lol and my eva-l09 didnt update any More, im stucked at android 6.0.
Any ideas? Im worried if I have to mannualy updated it because i have a bad experience with that.
I had before a gx8, ive mannualy updated the stock rom and like Many others i had no signal, so i did a flash to roll back and my fingerprint sensor stopped working (i couldnt Solve that)
Thanks!
Click to expand...
Click to collapse
I don't know have you really been originally on that cust c451, or you rebranded to c451 as part of going back to stock / rolling back to MM
Anyway, c451 is a dead end, check on FirmwarFinder or at:
https://pro-teammt.ru/firmware-database/?firmware_model=EVA-L09c451
you will see that EMUI 4.1, b131/b132 are the last ever firmwares for c451
You need to rebrand to some 'proper' cust like c432 (European), c636, or so, to be able to obtain OTA updates up to EMUI 5, like it was described here:
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
Rebranding to c432 is crucial. If updating to b182 as described there will fail, you should be able to reinstall c432 b182 (or newer c432) by eRecovery, or by flashing service restore c432b182 (but there are no service restores for c451 and no Nougat firmwares for c451)
zgfg said:
I don't know have you really been originally on that cust c451, or you rebranded to c451 as part of going back to stock / rolling back to MM
Anyway, c451 is a dead end, check on FirmwarFinder or at:
https://pro-teammt.ru/firmware-database/?firmware_model=EVA-L09c451
you will see that EMUI 4.1, b131/b132 are the last ever firmwares for c451
You need to rebrand to some 'proper' cust like c432 (European), c636, or so, to be able to obtain OTA updates up to EMUI 5, like it was described here:
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
Rebranding to c432 is crucial. If updating to b182 as described there will fail, you should be able to reinstall c432 b182 (or newer c432) by eRecovery, or by flashing service restore c432b182 (but there are no service restores for c451 and no Nougat firmwares for c451)
Click to expand...
Click to collapse
Thanks for the reply,
No, ive been originally on c451. I dindt change anything on this device. I bought it at amazon almost 3 years ago, and apparently it was a "telstra" phone, i think from Australia, altought in amazon it said unlocked. Now im using Movistar network in Argentina.
Ok then, the question is, is there any way to know that after rebranding to c432 or another cust my device will work properly? i mean phone signal (the most important thing), camera, fingerprint sensor, etc.
marcod_9 said:
Thanks for the reply,
No, ive been originally on c451. I dindt change anything on this device. I bought it at amazon almost 3 years ago, and apparently it was a "telstra" phone, i think from Australia, altought in amazon it said unlocked. Now im using Movistar network in Argentina.
Ok then, the question is, is there any way to know that after rebranding to c432 or another cust my device will work properly? i mean phone signal (the most important thing), camera, fingerprint sensor, etc.
Click to expand...
Click to collapse
Hardware is always the same, rebranding puts the other cust.
And with cust c432 you should receive OTA updates up to b504/b505
If not, for some reason (then it is possible to force DLOAD or HWOTA updates
Btw, responding you now from L09c432 rebranded to AL10c00 (Chinese), with Oreo b540 (Oreo was released for P9 only in China) and with some adaptations (Chinese firmwares are specific), everything works ok.
If you search throughout XDA, you will find many users (for all kinds of Huawei models) rebrand here and there, usually to c432 or c636 since they obtain faster and more updates (except for Chinese AL10, AL00, DL10 and alike that get first and farthest OTA updates, but Chinese firmwares require adaptations to become useful worldwide: bloatware, missing GApps, missing intl languages and configurations for intl carriers, and so)
Btw, didn't you previously say that you returned to stock (from custom ROM?) - in that case you must have Bootloader code (for rebranding you need to start with the unlocked Bootloader - have also OEM/FRP unlocked)
Edit: Btw, this is a wrong thread for discussing the update of stock MM firmware to Nougat
zgfg said:
Hardware is always the same, rebranding puts the other cust.
And with cust c432 you should receive OTA updates up to b504/b505
If not, for some reason (then it is possible to force DLOAD or HWOTA updates
Btw, responding you now from L09c432 rebranded to AL10c00 (Chinese), with Oreo b540 (Oreo was released for P9 only in China) and with some adaptations (Chinese firmwares are specific), everything works ok.
If you search throughout XDA, you will find many users (for all kinds of Huawei models) rebrand here and there, usually to c432 or c636 since they obtain faster and more updates (except for Chinese AL10, AL00, DL10 and alike that get first and farthest OTA updates, but Chinese firmwares require adaptations to become useful worldwide: bloatware, missing GApps, missing intl languages and configurations for intl carriers, and so)
Btw, didn't you previously say that you returned to stock (from custom ROM?) - in that case you must have Bootloader code (for rebranding you need to start with the unlocked Bootloader - have also OEM/FRP unlocked)
Click to expand...
Click to collapse
OK thank you! iwill do it
no, i was telling what happened with a previous device, gx8.