Database Users

How to downgrade firmware on Zenfone 2 Laser?

Hi, I am not happy with the latest update (V1.15.40.639) and would like to downgrade to the previous one (V1.13.40.496). I read on zentalk forum that we can downgrade by downloading the latter firmware from asus site(http://www.asus.com/Phone/ZenFone-2-Laser-ZE550KL/HelpDesk_Download/) and place it on SD card root. The reboot to the recovery and select something like "apply update from external". Can someone confirm if this will work? Is there an easy enough and confirmed way to downgrade the firmware. Any help will be much appreciated.
Edit: The method works!

Haven't done that but it should work, if you face any app crashes you will need to reset phone

Pls don't downgrade it will kill ur phone

mannulko said:
Pls don't downgrade it will kill ur phone
Click to expand...
Click to collapse
Have you tried it? If it goes dead, do you think Asus service center will be able to revive it?

No but have heard that software cannot be downgraded in any phone

Gustapo said:
Have you tried it? If it goes dead, do you think Asus service center will be able to revive it?
Click to expand...
Click to collapse
He is wrong xD
Like I said the you'd face app crashes which you can fix by resetting phone.
If you are not comfortable to do this then simply go to service center and tell them you want certain update flashed for whatever reason.

pra300 said:
He is wrong xD
Like I said the you'd face app crashes which you can fix by resetting phone.
If you are not comfortable to do this then simply go to service center and tell them you want certain update flashed for whatever reason.
Click to expand...
Click to collapse
ok. yeah that sounds the safest. Hopefully those guys would've a way to do this.

Hi. I was able to downgrade the mobile successfully following this method.

Gustapo said:
Hi. I was able to downgrade the mobile successfully following this method.
Click to expand...
Click to collapse
Did you actually go into recovery and flash the previous firmware or just let the phone detect the firmware and install it by itself?

heywheelie said:
Did you actually go into recovery and flash the previous firmware or just let the phone detect the firmware and install it by itself?
Click to expand...
Click to collapse
I placed the update on sd card. Booted to recovery. cleared data and cache and applied the update via SD Card method. The cleared cache once more and rebooted.Voila!

This method is going to wipe all user data???

Probably a reboot would do the same result.
I have, like many others, the latest firmware and I didn't encounter no problems. So definitely is not the firmware itself.

kalpit15 said:
This method is going to wipe all user data???
Click to expand...
Click to collapse
LOL. That's one question I never ask. It's always a good idea to do a backup before any update, especially if it's a full firmware flash and not an OTA update.

No. I only wiped cache and it seems to have kept the data intact at the time. I had a backup for safety's sake but I did not need to restore it.

Can We root the phone after downgrading it to lollipop using Kingroot?

pra300 said:
He is wrong xD
Like I said the you'd face app crashes which you can fix by resetting phone.
If you are not comfortable to do this then simply go to service center and tell them you want certain update flashed for whatever reason.
Click to expand...
Click to collapse
It can be downgraded
But if u Go from Marshmallow to Lollipop in ZOOL it won't do u any good moreover u would loose your VOLTE update

Stock Firmware for L29C567? Phone soft bricked!

I was installing TWRP and superuser and something failed. Now the phone soft resets and bounces between TWRP and Huawei eRecovery. Does anyone have a L29C567 firmware I can flash? I've done some searching and there doesn't seem to be any sources for the firmware yet. Just trying to get the phone working again.
I think I could use FunkyHuawei if they had the firmware but I don't believe they do yet.
Edit: Looks like I put this in the wrong sub forum, sorry

Please be patient. Soon enough it will be available.

JJBTEXAS said:
I was installing TWRP and superuser and something failed. Now the phone soft resets and bounces between TWRP and Huawei eRecovery. Does anyone have a L29C567 firmware I can flash? I've done some searching and there doesn't seem to be any sources for the firmware yet. Just trying to get the phone working again.
I think I could use FunkyHuawei if they had the firmware but I don't believe they do yet.
Edit: Looks like I put this in the wrong sub forum, sorry
Click to expand...
Click to collapse
When that happened to me I flashed the update_full_hw_spcseas.zip folder through dload (vol up + down + power) to get the phone booting again.

Try this guide,it will change ur region to Asia C636 but the phone will work 100%
You can rebrand later when official USA version is available.
https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656/page4

gm007 said:
Try this guide,it will change ur region to Asia C636 but the phone will work 100%
You can rebrand later when official USA version is available.
https://forum.xda-developers.com/mate-9/how-to/guide-rebrand-chinese-al00-mate9-to-t3554656/page4
Click to expand...
Click to collapse
Yes I did this last night but now I'm stuck on B110. When I tried to flash update_full_hw_spcseas.zip my update restore failed and I got stuck in the bootloop again. I was able to dload B110 again so the phone is running but not sure how to get to B136 or B138 or even B158.

JJBTEXAS said:
Yes I did this last night but now I'm stuck on B110. When I tried to flash update_full_hw_spcseas.zip my update restore failed and I got stuck in the bootloop again. I was able to dload B110 again so the phone is running but not sure how to get to B136 or B138.
Click to expand...
Click to collapse
Do you have all apps and themes installed or they are missing?
To update use system update,try with wifi and 4g, there is 3 dots in the upper right click download latest package.

gm007 said:
Do you have all apps and themes installed or they are missing?
To update use system update,try with wifi and 4g, there is 3 dots in the upper right click download latest package.
Click to expand...
Click to collapse
I lost all the google apps and the keyboard when I tried to updated from B110 to B136 using step 7 "flash hw_data" but got it all back when with dloading back to B110.
I'm trying the updater now and it seems to be updating to B158! will update.

Update worked and I'm now on B158 which is awesome! The only thing that's odd now is that my MEID is 000000000000. I'm not sure if that's a big deal.
To update use system update,try with wifi and 4g, there is 3 dots in the upper right click download latest package.
Click to expand...
Click to collapse
Any reason to use steps 5 - 9 instead of doing the update from B110?

JJBTEXAS said:
Update worked and I'm now on B158 which is awesome! The only thing that's odd now is that my MEID is 000000000000. I'm not sure if that's a big deal.
Any reason to use steps 5 - 9 instead of doing the update from B110?
Click to expand...
Click to collapse
Step 5 to 9 is to restore the Missing application and data i recommend do this steps again.
If you have boot loop boot to stock recovery and do factory reset.

gm007 said:
Step 5 to 9 is to restore the Missing application and data i recommend do this steps again.
If you have boot loop boot to stock recovery and do factory reset.
Click to expand...
Click to collapse
Hmm. I don't think I'm missing any applications though. I have all the google apps, which is what I lost last time I tried.

JJBTEXAS said:
Hmm. I don't think I'm missing any applications though. I have all the google apps, which is what I lost last time I tried.
Click to expand...
Click to collapse
Did you tried a factory reset from settings?
If that didn't restore ur meid than maybe you need to flash the public data zip,will give you link later.

JJBTEXAS said:
Hmm. I don't think I'm missing any applications though. I have all the google apps, which is what I lost last time I tried.
Click to expand...
Click to collapse
sorry but can i ask if you have restore the oeminfo to c636?

eddmecha said:
sorry but can i ask if you have restore the oeminfo to c636?
Click to expand...
Click to collapse
Yes. I did the following:
* Unlock bootloader
* install twrp
1- restore oeminfo for C636 http://www.mediafire.com/?szws87sk7rrkqr6
2- download c636 offline firmware,and flash it from an sd card using 3 buttons method by dload folder. https://forum.xda-developers.com/mat...4/post70465883
3- factory reset from settings.
4-use system update to get the latest firmware.
Basically gm007's but skipping a few steps
The end result was a seemingly complete L29C636B158.

gm007 said:
Did you tried a factory reset from settings?
If that didn't restore ur meid than maybe you need to flash the public data zip,will give you link later.
Click to expand...
Click to collapse
Yes, I believe I did. Is there any reason for me to fix the meid?

JJBTEXAS said:
Yes, I believe I did. Is there any reason for me to fix the meid?
Click to expand...
Click to collapse
If everything is working fine no need, maybe later if you decide to rebrand to original usa version.

gm007 said:
If everything is working fine no need, maybe later if you decide to rebrand to original usa version.
Click to expand...
Click to collapse
That's what I was thinking. I might try another factory reset just to test it.

JJBTEXAS said:
That's what I was thinking. I might try another factory reset just to test it.
Click to expand...
Click to collapse
Could be cause u skiped step 5 there is a mismatch in system files.
The update you got via system update is a small update or full firmware?

gm007 said:
Could be cause u skiped step 5 there is a mismatch in system files.
The update you got via system update is a small update or full firmware?
Click to expand...
Click to collapse
Reset didn't solve it. I think the update was over 2gb so full firmware.

ajsmsg78 said:
When that happened to me I flashed the update_full_hw_spcseas.zip folder through dload (vol up + down + power) to get the phone booting again.
Click to expand...
Click to collapse
hi bro how do u manage that can u full explain ?

Sorry to resurrect the old thread but I am having the same problem with meid number all zeros. The phone seems to work fine except that I cannot get LTE or 4G on certain provider's. Mine is also the US version. What did you do to fix this issue?

Rollback to Stock Firmware - European Version

Hi,
I played a bit around with my Huawei P9 Lite, but I forgot to save my initial settings (originally it's a branded phone by 3 Austria). - Yes, my bad.
Now I'd like to go to back to the original firmware. I realised that I have firmware VNS-L21C900B161. - But my phone used to have C432, not C900.
What does C900 mean? Do I still get updates? How do I get a C432 firmware?
Sorry for those many questions, but I am desparate. I just want the correct Version for Europe (unbranded). - Also to get the update to Android Nougat.
Any help is appreciated.
Seth01

You must flash oeminfo C432 and then flash update.app...there are good tutorial in youtb.....

It worked, but... :/
Hi
thank you so much for your help. Now I have the European OEM C432 Version.
But if I (re)boot my smartphone now, it says , "Your device has failed verification and may not work properly." - But it does work properly and it also boots normally then.
How do I get rid of this message?
Greetings,
Seth

Seth01 said:
Hi
thank you so much for your help. Now I have the European OEM C432 Version.
But if I (re)boot my smartphone now, it says , "Your device has failed verification and may not work properly." - But it does work properly and it also boots normally then.
How do I get rid of this message?
Greetings,
Seth
Click to expand...
Click to collapse
Reflash firmware. B160.

RazOne said:
Reflash firmware. B160.
Click to expand...
Click to collapse
I am actually afraid to reflash. Will it then not become OEM version C900 again?
Can I flash via SD-Card with the dload folder, or do I need a tool? (I have downloaded and used the "VNS-L21-L22-L31 Toolkit.exe".)
Seth

Did you make factory reset before boot??

Yes, i did. And In the meantime the message is gone. So everything's fine so far.
But my bootloader is still open.
Any idea how to close? The message on reboot that the device can't be trusted, is rather annoying.
Seth

You got to relock.use the toolkit.....for me after downgrade that warning message about bootloader unlock is gone.but in fastboot my phone is unlocked...

Yeah, I'll try tomorrow. I tried to lock with the tool, but it crashed when I tried to.
Thank you to all of you for your help!
Seth

Seth01 said:
I am actually afraid to reflash. Will it then not become OEM version C900 again?
Can I flash via SD-Card with the dload folder, or do I need a tool? (I have downloaded and used the "VNS-L21-L22-L31 Toolkit.exe".)
Seth
Click to expand...
Click to collapse
Nope. It will not become because you will flash the c432 version. That message you get is because you unlocked your bl. A simple relock or firmware flash via dload will solve your problem.

Please Delete, double Posting!

RazOne said:
Nope. It will not become because you will flash the c432 version. That message you get is because you unlocked your bl. A simple relock or firmware flash via dload will solve your problem.
Click to expand...
Click to collapse
Via dload by pressing volume+, volume- and power?

Beni2567 said:
Via dload by pressing volume+, volume- and power?
Click to expand...
Click to collapse
yes

RazOne said:
yes
Click to expand...
Click to collapse
Hi so I'm on nougat and I have all those bugs, my version is L31 EUROPE and I have the right firmware file "UPDATE.APP"and is already on a folder called dload made by me on the SD card.
All I have to do now is turn off the phone and press the 3 buttons and the phone will have marshmellow?

well i think so. im not sure:d have you installed nougat via twrp?

RazOne said:
well i think so. im not sure:d have you installed nougat via twrp?
Click to expand...
Click to collapse
Yh I use TWRP and when it booted the recovery changed to the normal one

HTC 10 Verizon Oreo OTA or Backup Needed

I just bought a used sim unlocked HTC 10 Verizon off eBay yesterday, it was shipped with marshmallow firmware and I successfully managed to update it to the 7.0 nougat through htc sync manager, however after updating it to 7.0 sync manager shows that the phone is updated to the latest version and there aren't any further updates available, we all know that verizon released an 8.0 update as well for the htc 10. Also, I tried updating through OTA but whenever I press on check updates it says "Cannot connect, we had trouble checking for the system updates." Can anybody provide me with an SD card backup or anything so that I can update my phone to 8.0 officially without losing data? I just want to update it to 8.0 and nothing else, don't want to root it or anything. So far the device seems amazing.
Some information about my phone:
Model Number: HTC 6545LVW
Current Software Version: 2.41.605.36

whizinc said:
I just bought a used sim unlocked HTC 10 Verizon off eBay yesterday, it was shipped with marshmallow firmware and I successfully managed to update it to the 7.0 nougat through htc sync manager, however after updating it to 7.0 sync manager shows that the phone is updated to the latest version and there aren't any further updates available, we all know that verizon released an 8.0 update as well for the htc 10. Also, I tried updating through OTA but whenever I press on check updates it says "Cannot connect, we had trouble checking for the system updates." Can anybody provide me with an SD card backup or anything so that I can update my phone to 8.0 officially without losing data? I just want to update it to 8.0 and nothing else, don't want to root it or anything. So far the device seems amazing.
Some information about my phone:
Model Number: HTC 6545LVW
Current Software Version: 2.41.605.36
Click to expand...
Click to collapse
https://forum.xda-developers.com/verizon-htc-10/how-to/unlocked-htc-10-verizon-version-wont-t3843549
This will wipe your data though, unfortunately.

Tarima said:
https://forum.xda-developers.com/verizon-htc-10/how-to/unlocked-htc-10-verizon-version-wont-t3843549
This will wipe your data though, unfortunately.
Click to expand...
Click to collapse
Thanks a lot!! Just want to know one thing how can i flash it? through SD card backup or is the RUU which is an .exe file?

whizinc said:
Thanks a lot!! Just want to know one thing how can i flash it? through SD card backup or is the RUU which is an .exe file?
Click to expand...
Click to collapse
It's a zip file so you'll need to rename to 2PS6IMG.zip, put it on the root of your SD card and boot to download mode.

Tarima said:
It's a zip file so you'll need to rename to 2PS6IMG.zip, put it on the root of your SD card and boot to download mode.
Click to expand...
Click to collapse
im fairly new to HTC, this might sound like a noob question: Will it start updating itself as soon as I boot it in the download mode? P.S file being in the SD card on root

whizinc said:
im fairly new to HTC, this might sound like a noob question: Will it start updating itself as soon as I boot it in the download mode? P.S file being in the SD card on root
Click to expand...
Click to collapse
No but it will prompt you to flash it, as long as you named it properly.

Tarima said:
No but it will prompt you to flash it, as long as you named it properly.
Click to expand...
Click to collapse
i dont have an SD card at the moment, can i use internal memory?

whizinc said:
i dont have an SD card at the moment, can i use internal memory?
Click to expand...
Click to collapse
You can't. I think you can flash it using fastboot commands? I don't know how though. I saw @yldlj mention it, maybe he can help?

whizinc said:
i dont have an SD card at the moment, can i use internal memory?
Click to expand...
Click to collapse
You need to download htc_fastboot from HTC dev. I'm not sure the commands tho but im sure if you google it it will come up. Htc_fastboot allows flashing bigger files. Or just go to the shops today and get an SD card which is the easy way.

yldlj said:
You need to download htc_fastboot from HTC dev. I'm not sure the commands tho but im sure if you google it it will come up. Htc_fastboot allows flashing bigger files. Or just go to the shops today and get an SD card which is the easy way.
Click to expand...
Click to collapse
tried googling it, seems like a complex method. I'll get an SD card today to make things easier. Thanks a lot

Downgrade + Root

Does anyone know if there is any guides that I can follow to downgrade from latest update, so I can unlock my bootloader and root my device?
Thanks

JordieSnipezHD said:
Does anyone know if there is any guides that I can follow to downgrade from latest update, so I can unlock my bootloader and root my device?
Thanks
Click to expand...
Click to collapse
look for tutorials for firmware finder and dns downgrade huawei in the global search function

https://mytipsblogblog.wordpress.com/2017/05/04/how-to-use-firmware-finder/
https://play.google.com/store/apps/details?id=com.teammt.gmanrainy.huaweifirmwarefinder

KevMetal said:
https://mytipsblogblog.wordpress.com/2017/05/04/how-to-use-firmware-finder/
https://play.google.com/store/apps/details?id=com.teammt.gmanrainy.huaweifirmwarefinder
Click to expand...
Click to collapse
Unable to downgrade using this, doesn't seem to work ?

JordieSnipezHD said:
Unable to downgrade using this, doesn't seem to work ?
Click to expand...
Click to collapse
i think you are mistaken since some guys have reported successfully doing it ...
in any event if you can't downgrade using dns try downloading the complete OTA package and try doing it in erecovery on your phone ..
failing that you might as well try every method you can find that is related to "restoring" your device using the old OTA package ..
however since this is the only downgrade option AFAIK you are SOT if you can't make it work but you are probably just committing an error or have a bad internet connection etc etc and however painful it's in your own interest to keep trying ..there is just no one button press solution for you ..
i saw somewhere one of the things you can pay dc unlocker for is downgrading but tbh i don't know if it works or not so can't advocate it ...
sorry to hear about your bad luck but if you can't make the above work .....you post a solution if and when you find it to help other guys ...
or __________________________________
:good:
---------- Post added at 07:03 PM ---------- Previous post was at 07:01 PM ----------
you can try to download the full OTA update package with firmware finder ...then put the update.zip on internal sd card in folder dload ...boot into erecovery and try to apply the zip ....worth a go..
read & try all these methods
https://boycracked.com/android-tuto...-unbrick-firmware-any-huawei-android-devices/

I've been aware that firmwares from Firmware Finder don't work in order to downgrade. You need a full firmware, look for it at https://androidhost.ru/ be sure to search your MODEL and CUST, the lowest build number available. Then extract DLOAD folder and put it in your external SD card, inside this folder you should see update_sd.zip and then another folder with your model and cust which is named update_full_sd... or something. After that go to dialer, type in #*#*2846579#*#* then software upgrade - sdcard upgrade (this wipes data so make a backup). In the end you'll end up with an older firmware so you can use DC Unlocker. I did it in that way and I was able to use the unlock service.

siredux said:
I've been aware that firmwares from Firmware Finder don't work in order to downgrade. You need a full firmware, look for it at https://androidhost.ru/ be sure to search your MODEL and CUST, the lowest build number available. Then extract DLOAD folder and put it in your external SD card, inside this folder you should see update_sd.zip and then another folder with your model and cust which is named update_full_sd... or something. After that go to dialer, type in #*#*2846579#*#* then software upgrade - sdcard upgrade (this wipes data so make a backup). In the end you'll end up with an older firmware so you can use DC Unlocker. I did it in that way and I was able to use the unlock service.
Click to expand...
Click to collapse
Thanks I used this method and it worked. Downgraded, unlocked bootloader and I'm now running omnirom.
?

siredux said:
I've been aware that firmwares from Firmware Finder don't work in order to downgrade. You need a full firmware, look for it at https://androidhost.ru/ be sure to search your MODEL and CUST, the lowest build number available. Then extract DLOAD folder and put it in your external SD card, inside this folder you should see update_sd.zip and then another folder with your model and cust which is named update_full_sd... or something. After that go to dialer, type in #*#*2846579#*#* then software upgrade - sdcard upgrade (this wipes data so make a backup). In the end you'll end up with an older firmware so you can use DC Unlocker. I did it in that way and I was able to use the unlock service.
Click to expand...
Click to collapse
What are u trying to do? These firmwares are not official! They are modified! There is no huawei identity option or firmware update option! Some stock applications are missing and you can't install an official firmware!

candask said:
What are u trying to do? These firmwares are not official! They are modified! There is no huawei identity option or firmware update option! Some stock applications are missing and you can't install an official firmware!
Click to expand...
Click to collapse
Have you even read carefully? I can tell based on my experience, if that's what you believe it's fine, I have done this like a million times without an issue so far. Don't blame others for what you have done wrong my friend.
Sent from my FIG-LX3 using XDA Labs

siredux said:
Have you even read carefully? I can tell based on my experience, if that's what you believe it's fine, I have done this like a million times without an issue so far. Don't blame others for what you have done wrong my friend.
Sent from my FIG-LX3 using XDA Labs
Click to expand...
Click to collapse
Is there "huawei identity" part on your rom? Is software OTA update available?

Can confirm this works but i had to do using my pc as a wifi hotspot and setting the dns using speedify proxy due my router not having the options to change the dns. Use TEAM MT Firmware finder pc version and follow the instructions then open hisuite and it will downgrade for you, i was then able to unlock my bootloader with dc unlocker and root with magisk.

I took the telephone to a shop for firmware repair. He tried for a couple of days and he also couldn’t get back to official software.

candask said:
I took the telephone to a shop for firmware repair. He tried for a couple of days and he also couldn’t get back to official software.
Click to expand...
Click to collapse
I can guarantee that its possible even with a locked bootloader aslong as the you are placing a signed firmware onto it.
The method needed is quite a pain, the only way i got it working is by making my pc into a wireless hotspot and altering the DNS from there then in firmware finder you need to register the firmware to you imei/ip then you can either try with huisuite or through recovery to click to check for updates and instead of it asking the official servers it ask or checks the firmware finders dns server which then confirms there is an update

JordieSnipezHD said:
Does anyone know if there is any guides that I can follow to downgrade from latest update, so I can unlock my bootloader and root my device?
Thanks
Click to expand...
Click to collapse
https://forum.xda-developers.com/hu...-smart-goes-directly-to-t3924386#post79421294
Try this post.(not sure if it's working, I'll test it in about 4hours and reply again or maybe write a guide.)