I upgraded my tablet to 4.2.1 and have enjoyed it until recently it's become ridden with reboots (mostly when using mx player) and battery life and speed seems to be suffering also.
I saw that it is possible to downgrade the firmware ( http://forum.xda-developers.com/showthread.php?t=2195883 )
Now will this downgrade the bootloader also? Or will the new bootloader still be present?
adamsaur said:
I upgraded my tablet to 4.2.1 and have enjoyed it until recently it's become ridden with reboots (mostly when using mx player) and battery life and speed seems to be suffering also.
I saw that it is possible to downgrade the firmware ( http://forum.xda-developers.com/showthread.php?t=2195883 )
Now will this downgrade the bootloader also? Or will the new bootloader still be present?
Click to expand...
Click to collapse
I have gone between 4.2(10.6.1.8) and 4.1(10.4.2.20) five times with no issues. Your bootloader will also be updated.
The only thing cant do is downgrade to ics once on jb and bootloader stuck there but can downgrade as far as want just cant go back to ics.
Related
Hello XDA,
I've been very quiet on this board so far but still you've helped me many times.
I've seen on some topics that the XT925 had it's OTA released today.
However, i'm on a fully unlocked root and flashed XT925 with JBBL on CM11.1. My GPS is bugged (maybe because my phone fell in the water on friday but i'd like to rule that out) and i need it badly, the Rom is laggy and causing multiple black screens of death (even using the latest nightly).
So now the OTA is available, what is the procedure to go back to the OTA path on my XT925? It's a non branded XT925 so if i read right, CEE version should be ok for me.
What will i loose by flashing a firmware via RSDlite? Unlocked bootloader? Root for sure...
Thanks in advance,
Lilion
Yesterday .. i Have upgrade my device firmware from b239 to b250
but after upgrade there was lag in every game
then i download the stock firmware and downgrade the soft but there was a software failure
help me please my phone is locked boot loader
Marwant91 said:
Yesterday .. i Have upgrade my device firmware from b239 to b250
but after upgrade there was lag in every game
then i download the stock firmware and downgrade the soft but there was a software failure
help me please my phone is locked boot loader
Click to expand...
Click to collapse
I don't know quite about Huawei bt have you used any tool to flash the ROM
Sushant Rohan said:
I don't know quite about Huawei bt have you used any tool to flash the ROM
Click to expand...
Click to collapse
huawei dosn't use tools it's by local upgrade or force upgrade
Marwant91 said:
Yesterday .. i Have upgrade my device firmware from b239 to b250
but after upgrade there was lag in every game
then i download the stock firmware and downgrade the soft but there was a software failure
help me please my phone is locked boot loader
Click to expand...
Click to collapse
I know this is an old thread, but I only recently discovered that you cannot officially downgrade your firmware on the G7.
This was Huawei's response when asked why we can't downgrade our firmware:
Hi. We don't recommend downgrading as it will affect the phone’s performance and may lead to fundamental performance problem.
Click to expand...
Click to collapse
Why this could lead to performance problems if it's a forced upgrade, I have no idea, and I also do not believe that.
I was able to upgrade/downgrade my P6 so easily, without any issues whatsoever, so I find their response very hard to believe.
Sent from my G7-L01 using Tapatalk
Okay, so I recently bought a used Moto G LTE, seller said it would be on Lollipop 5.1. When I received it, it had been rolled back to 4.4.4. Hence the screen ripple at every boot up (which persists until the phone is locked and then unlocked) that almost gave me a heart attack the first time. A little googling later I learn this happens because while you can downgrade android the upgraded version's bootloader remains. So last night I finally got around to rooting since I just can't go from a rooted phone to living with a non rooted one, feels like my phone has a noose around it. Anyway I wanted to know if it's safe to flash CM on my phone now or should I reupgrade to 5.1 first? And if I should is there a way to get it to update OTA again? If not any suggestions where to find the firmware? I just want to feel free to flash roms without bricking my phone. Here is a screenshot of my About Phone, in case someone needs it to help, imgur.com /v8iLOU7
electriceccentric said:
Okay, so I recently bought a used Moto G LTE, seller said it would be on Lollipop 5.1. When I received it, it had been rolled back to 4.4.4. Hence the screen ripple at every boot up (which persists until the phone is locked and then unlocked) that almost gave me a heart attack the first time. A little googling later I learn this happens because while you can downgrade android the upgraded version's bootloader remains. So last night I finally got around to rooting since I just can't go from a rooted phone to living with a non rooted one, feels like my phone has a noose around it. Anyway I wanted to know if it's safe to flash CM on my phone now or should I reupgrade to 5.1 first? And if I should is there a way to get it to update OTA again? If not any suggestions where to find the firmware? I just want to feel free to flash roms without bricking my phone. Here is a screenshot of my About Phone, in case someone needs it to help, imgur.com /v8iLOU7
Click to expand...
Click to collapse
Hi.
In my xt1040, i can flash CM 12 lollipop or a stock rom based from kitkat 4.4.4 without problems (I have a updated bootloader), to get OTA updates again, its necessary flash the stock rom (KK or LP), without root, PURE stock (with all "bloatware").
Now im using a optimized rom from:
http://forum.xda-developers.com/moto-g/4g-development/rom-stock-motorola-4g-lollipop-rom-t3142816
No bugs, amazing battery life, and a pure stock, no "bloatware", great ram management.
Sorry for bad english.
electriceccentric said:
Okay, so I recently bought a used Moto G LTE, seller said it would be on Lollipop 5.1. When I received it, it had been rolled back to 4.4.4. Hence the screen ripple at every boot up (which persists until the phone is locked and then unlocked) that almost gave me a heart attack the first time. A little googling later I learn this happens because while you can downgrade android the upgraded version's bootloader remains. So last night I finally got around to rooting since I just can't go from a rooted phone to living with a non rooted one, feels like my phone has a noose around it. Anyway I wanted to know if it's safe to flash CM on my phone now or should I reupgrade to 5.1 first? And if I should is there a way to get it to update OTA again? If not any suggestions where to find the firmware? I just want to feel free to flash roms without bricking my phone. Here is a screenshot of my About Phone, in case someone needs it to help, imgur.com /v8iLOU7
Click to expand...
Click to collapse
You'll have to wipe the system anyway, updating it will be a waste of time...
I had Nougat(L19C636B360) when I bought my phone. The box had model "AL-10" written on it although the firmware was of L-19. Anyways, an OTA update arrived, I clicked on update and it got bricked. I had never unlocked the bootloader, rooted or anything. After a lot of trial and error, I successfully got my phone working by flashing MM 6.0 - FRD-L19C900B131 through 'dload' method. But this firmware is buggy as hell. My phone's laggy, crashes constantly, the photos are worse etc.
A found a couple of stock firmware packages(L19C636B360) on the forum but they come with two separate files(update.zip and updata_data_full_hw_specxx.zip) and my phone doesn't support them(Installation fail). Also they are of only 2-2.5GB, whereas the one I successfully flashed is 3.3GB
Note : I have unlocked the bootloader now
And you are developer?
Wrong forum to post buddy.
SirDarknight said:
I had Nougat(L19C636B360) when I bought my phone. The box had model "AL-10" written on it although the firmware was of L-19. Anyways, an OTA update arrived, I clicked on update and it got bricked. I had never unlocked the bootloader, rooted or anything. After a lot of trial and error, I successfully got my phone working by flashing MM 6.0 - FRD-L19C900B131 through 'dload' method. But this firmware is buggy as hell. My phone's laggy, crashes constantly, the photos are worse etc.
A found a couple of stock firmware packages(L19C636B360) on the forum but they come with two separate files(update.zip and updata_data_full_hw_specxx.zip) and my phone doesn't support them(Installation fail). Also they are of only 2-2.5GB, whereas the one I successfully flashed is 3.3GB
Note : I have unlocked the bootloader now
Click to expand...
Click to collapse
Bro try flashing L19C636B130 1st then you will recieve a OTA L19c636B360
we have the same problem
june28dane said:
Bro try flashing L19C636B130 1st then you will recieve a OTA L19c636B360
we have the same problem
Click to expand...
Click to collapse
I also have the same problem, did that method work for you? (flashing L19C636B130 1st then) ???
help me plis!
https://androidfilehost.com/?fid=385035244224385836
I installed this firmware by lost101. When I power on my device. there is some sort of bar flickering on-screen which goes only when I've locked or turned off my device. Is it a fault with firmware? I want to use a stock firmware based on kitkat. Does anyone have a link to the firmware which doesn't have this problem? I was previously on Lollipop and downgraded to KitKat.
you will have to get used to it. it is due to incompatibility with your upgraded bootloader(lollipop) and kitkat ROM. downgrading bootloaders is not advisable since there are many users who bricked their devices in the process.
koshikas said:
you will have to get used to it. it is due to incompatibility with your upgraded bootloader(lollipop) and kitkat ROM. downgrading bootloaders is not advisable since there are many users who bricked their devices in the process.
Click to expand...
Click to collapse
I went back to Lollipop and it's fine now,