Downgrade nexus 7 - Nexus 7 (2013) Q&A

I have a nexus 7 (2013) that was bought in 2015. It shipped with 5.0.2 Lollipop. I need to downgrade to Kitkat, and I know what you'll say, either to use nexus root toolkit, or to flash the factory image. Both get me stuck on the google splash screen, does anyone know how to downgrade it? Thanks

nickd03 said:
I have a nexus 7 (2013) that was bought in 2015. It shipped with 5.0.2 Lollipop. I need to downgrade to Kitkat, and I know what you'll say, either to use nexus root toolkit, or to flash the factory image. Both get me stuck on the google splash screen, does anyone know how to downgrade it? Thanks
Click to expand...
Click to collapse
Yes, but... the 2015 N7 also shipped with eMMC v5.0 vs v4.5 earlier. The new version requires a kernel update and to use Kitkat you need a custom kernel - perhaps ElementalX?

Thank you, I will try elemental x or franco :cyclops:

Ok, elementalx didn't work, I'm going to try to patch the kernel myself, would anyone like to help?

Okay, so far the progress is not so well, does anyone have a patched kernel for it, or at least know how to apply a .patch file to a kernel.

nickd03 said:
Okay, so far the progress is not so well, does anyone have a patched kernel for it, or at least know how to apply a .patch file to a kernel.
Click to expand...
Click to collapse
All you have to do is to change one digit in /drivers/mmc/core/mmc.c
Code:
[U]from[/U]
if (card->ext_csd.rev > 6) {
[U]to[/U]
if (card->ext_csd.rev > 7) {
and follow eg this guide https://source.android.com/source/building-kernels.html

Okay I will try that, thanks

When I start cloning with git it fails, my Internet isn't good enough, is anyone else having this problem?

Related

Nexus 7 (2013 wifi-flo) 4.4.2 + MultiROM v23 = No WiFi

Hi Guys,
First off, I have looked around for a solution before posting... I just can't find anyone with a similar problem as mine.
As I stated in the title>
Nexus 7 2013 wifi 16gb flo
Kitkat 4.4.2
I was and still plan to install Ubuntu touch - looks great! However, I didn't want to loose my KitKat, I need it for work. So I researched and found MultiROM which is just what I needed.
I followed this post:
http://forum.xda-developers.com/sho...tmctr=(not provided)&__utmv=-&__utmk=34826402
And installed this app:
http://click.xda-developers.com/api...iROM v23 - xda-developers&txt=Install the app
I opened up the app, and it prompted me to install a modded kernel, so I did. I now have kernel version:
3.4.0-g20f5923
[email protected] #66
Wed Sep 25 22:02:11 CEST 2013
Problem is I can no longer turn on my wifi, everything else seems just fine.
Any tips?
Apologies if there is a post to address this and I couldn't find it...
Thanks...
Jared.
kernel
Looking around some more, I am convinced that it has to be the modded kernel causing my wifi issue.
Can anyone suggest a modded kernel that will work with MultiROM v23 and fix my wifi issue?
I tried flashing Francos Kernel last night, but it failed to install...
Any suggestions would be muchly appreciated...
Thanks...
You've installed kernel for 4.3 into 4.4.2 system. Latest update to the MultiROM Manager app (v1.106) should choose the correct version by default, it should be "Stock 4.4.1 and 4.4.2".
correct kernel
Tasssadar said:
You've installed kernel for 4.3 into 4.4.2 system. Latest update to the MultiROM Manager app (v1.106) should choose the correct version by default, it should be "Stock 4.4.1 and 4.4.2".
Click to expand...
Click to collapse
Thanks Tassadar for taking the time to get back to me, thing is I just let the app decide which kernel... I will try use odin to flash the correct kernel as TWRP will not allow me to flash it.
I'll let you know how it pans out...
Thanks again....
All good again!
JaredMardel said:
Thanks Tassadar for taking the time to get back to me, thing is I just let the app decide which kernel... I will try use odin to flash the correct kernel as TWRP will not allow me to flash it.
I'll let you know how it pans out...
Thanks again....
Click to expand...
Click to collapse
Thanks Tassadar! for helping out a n00b like myself...
I installed this kernel: http://forum.xda-developers.com/showthread.php?t=2389022
Now downloading Ubuntu touch...
I appreciate your help, and as soon as I can, i'll donate something - have a beer on me
THANKS!
Jared.

Current best way to get Android L?

I'm a bit late on this. I've never rooted my Nexus 7, but I'd like to check out Android L on it. Could someone kindly point me to the most recommended instructions for achieving this?
ergalthema said:
I'm a bit late on this. I've never rooted my Nexus 7, but I'd like to check out Android L on it. Could someone kindly point me to the most recommended instructions for achieving this?
Click to expand...
Click to collapse
Mine came rooted, but you probably can use Nexus Root Toolkit as a easier way to unlock and root.
And then I've highly recommend to use multirom to not affect current version as long as L is not yet released.
Multirom could be installed from Play, than you need to apply its prerequisites and install from add rom feature of twrp.

Vendor image

Hello. First of all , I'd like to apologize if my question is dumb and has already been answered... But I'm running out of ideas , i would like to install the Pure Nexus Rom because I'm on Cyanogen but the last build completely messed up my phone... And I don't know what Vendor image I should download ... I don't even know what that is... Thanks a lot for your future answers!
Rozalina340 said:
Hello. First of all , I'd like to apologize if my question is dumb and has already been answered... But I'm running out of ideas , i would like to install the Pure Nexus Rom because I'm on Cyanogen but the last build completely messed up my phone... And I don't know what Vendor image I should download ... I don't even what that is... Thanks a lot for your future answers!
Click to expand...
Click to collapse
Either use fastboot or TWRP 3.0 to flash the MMB29Q vendor before flashing the February OTA based Pure Nexus build. Check a rom's changelog to see which OTA it is based on, then flash that vendor image if need be. I must also add, several roms are based on the latest February AOSP branch which is MMB29U, the 5X MMB29Q vendor is what still needs to be installed. This is not a stupid question, you want to ask things like this to be sure you are in the know.
SlimSnoopOS said:
Either use fastboot or TWRP 3.0 to flash the MMB29Q vendor before flashing the February OTA based Pure Nexus build. Check a rom's changelog to see which OTA it is based on, then flash that vendor image if need be. I must also add, several roms are based on the latest February AOSP branch which is MMB29U, the 5X MMB29Q vendor is what still needs to be installed. This is not a stupid question, you want to ask things like this to be sure you are in the know.
Click to expand...
Click to collapse
Thank you so much for your answer ! I'm going to try that! Thank you again , I was so lost and desperate
Rozalina340 said:
Thank you so much for your answer ! I'm going to try that! Thank you again , I was so lost and desperate
Click to expand...
Click to collapse
Not problem, that's why this forum exists!
Sent from my Nexus 5X using Tapatalk
So what exactly does the vendor image do? Why do we need to update to update the ROM after a new android version is released?
am2012 said:
So what exactly does the vendor image do? Why do we need to update to update the ROM after a new android version is released?
Click to expand...
Click to collapse
From what I understand it's the drivers specific for that device, created by the device manufacturer. What I can't figure out is whether I should download those from this site of if they should be provided by the manufacturer somewhere? Like on lg.com?
macdabby said:
From what I understand it's the drivers specific for that device, created by the device manufacturer. What I can't figure out is whether I should download those from this site of if they should be provided by the manufacturer somewhere? Like on lg.com?
Click to expand...
Click to collapse
I've never used LG's website, but the vendor image is included in each 5X factory image:
https://developers.google.com/android/images?hl=en
Sent from my Nexus 5X using Tapatalk

Upgade from 7.1.1 to 6.0.1

Hi All,
Yes, it's not a mistake, I need to revert one of my Swifts to 6.0.1
I applied the 'update' offered by Wileyfox, and was appalled by the changes, especially foisting Truecaller on me. Because my other Swift is still on 6.0.1, I could see what had been broken.
So, I need help to find a signed zip + instructions on how to apply it please.
I would also like to remove the 'nag' from the other Swift, mainly to make sure I don't apply the upgrade by accident.
TIA
Dave
Hi visit this site you can find some here https://cyanogenupdatetracker.com/downloads/
hope it helps.
Zetren said:
Where can one get the latest CyanogenMod?
Click to expand...
Click to collapse
The CM 13.1.5 on cyanogenupdatetracker seems to be the latest available version, alternative sites offer just 13.1.2.
Zetren said:
Thanks, I am inquiring however after CyanogenMod, not CyanogenOS.
Click to expand...
Click to collapse
CyanogenMod SHUTDOWN
The latest version is 13.1.2 for ur swift
This is it , its fastboot rom u need pc , adb
Have fun
https://www.androidfilehost.com/?fid=24694152805484750

TWRP Touch not working

Hey Guys how's it going ... I'm having a little trouble getting twrp touch screen to work , running latest update 8.1 dec patch ...read many , many forum discussions here so i wouldn't make any mistakes but for some reason twrp touch is not responsive. Started from absolute stock brand new device , unlocked boot loader and critical and fastbooted pixel 2 xl twrp.img 3.2.1 and while in temporary twrp i flashed the twrp 3.2.1 zip and then the magisk 15.1 zip and absolutely nothing else and rebooted ....everything's fine except when i reboot in to twrp from my device, the touch screen does not work downloaded file from official twrp site and tried a couple times from scratch but never seems to change .... if there's something i've done wrong or if anyone might be able to help it would be very much appreciated and i apologize in advance if there is a solution on here that i haven't located yet
Mr. Blanco said:
Hey Guys how's it going ... I'm having a little trouble getting twrp touch screen to work , running latest update 8.1 dec patch ...read many , many forum discussions here so i wouldn't make any mistakes but for some reason twrp touch is not responsive. Started from absolute stock brand new device , unlocked boot loader and critical and fastbooted pixel 2 xl twrp.img 3.2.1 and while in temporary twrp i flashed the twrp 3.2.1 zip and then the magisk 15.1 zip and absolutely nothing else and rebooted ....everything's fine except when i reboot in to twrp from my device, the touch screen does not work downloaded file from official twrp site and tried a couple times from scratch but never seems to change .... if there's something i've done wrong or if anyone might be able to help it would be very much appreciated and i apologize in advance if there is a solution on here that i haven't located yet
Click to expand...
Click to collapse
Your issue has been well documented. From what I've read, it seems to be much more prevalent when using the stock kernel (boot.img) I would try flashing a custom kernel..ie..Flash, Elemental X, or electron to name a few. Hopefully that will solve your problem :good:
Yep, custom kernel seems to resolve it... I'm using Flash's latest.
Badger50 said:
Your issue has been well documented. From what I've read, it seems to be much more prevalent when using the stock kernel (boot.img) I would try flashing a custom kernel..ie..Flash, Elemental X, or electron to name a few. Hopefully that will solve your problem :good:
Click to expand...
Click to collapse
Thanks Badger , i really appreciate your help and suggestions ...i'm gonna give it a shot after work tonight
was on stock and having the touch issue... switched to flash kernel and all is well
dadoc04 said:
was on stock and having the touch issue... switched to flash kernel and all is well
Click to expand...
Click to collapse
thank you dadoc and also galaxyS for your guys support , really appreciate it !!! Do you notice any improvements using the Flash Kernal compared to stock ?
Mr. Blanco said:
thank you dadoc and also galaxyS for your guys support , really appreciate it !!! Do you notice any improvements using the Flash Kernal compared to stock ?
Click to expand...
Click to collapse
You'll have much more control over your kernel, such as, color control, gestures, memory, governors, schedulers, vibration, and wakelocks :good:
Badger50 said:
You'll have much more control over your kernel, such as, color control, gestures, memory, governors, schedulers, vibration, and wakelocks :good:
Click to expand...
Click to collapse
Thanks Badger .....between the Flash , Electron and ElementalX kernals , do you have a preference ?
Mr. Blanco said:
Thanks Badger .....between the Flash , Electron and ElementalX kernals , do you have a preference ?
Click to expand...
Click to collapse
Flash and Ex have been my 2 favorites for a long time. Flash does a great job keeping it up to date with upstream changes, and Ex has been a solid performer for many years. Can't go wrong with either :good::good:
Badger50 said:
Flash and Ex have been my 2 favorites for a long time. Flash does a great job keeping it up to date with upstream changes, and Ex has been a solid performer for many years. Can't go wrong with either :good::good:
Click to expand...
Click to collapse
agree 100% with what he said... been using flash since the 6p
using adb reboot recovery also works
Badger50 said:
Flash and Ex have been my 2 favorites for a long time. Flash does a great job keeping it up to date with upstream changes, and Ex has been a solid performer for many years. Can't go wrong with either :good::good:
Click to expand...
Click to collapse
Hey Badger i have a question , i'm on stock 8.1 dec patch . and wanted to flash Ex kernal but i've noticed that it and a couple other kernals are on jan patch ... if i flash kernal with new jan patch , will i still be able to revert back to factory image with dec patch ....as that is all that is available for my device presently
Mr. Blanco said:
Hey Badger i have a question , i'm on stock 8.1 dec patch . and wanted to flash Ex kernal but i've noticed that it and a couple other kernals are on jan patch ... if i flash kernal with new jan patch , will i still be able to revert back to factory image with dec patch ....as that is all that is available for my device presently
Click to expand...
Click to collapse
Yeah, no problem. When you flash your factory images, it will overwrite your system and return to stock kernel. Question, what do you mean by "that is all that's available for my device"? There are factory images for the P2XL on Google's site. Why not just upgrade to the January build?
Badger50 said:
Yeah, no problem. When you flash your factory images, it will overwrite your system and return to stock kernel. Question, what do you mean by "that is all that's available for my device"? There are factory images for the P2XL on Google's site. Why not just upgrade to the January build?
Click to expand...
Click to collapse
Thanks Badger . that's what i figured , but wanted to be safe as ive read you can't revert back but i'm assuming that's to the 8.0 os builds. Yeah i was all over it looking for my device build to flash the jan build but it's only showing the dec build for mine on the developers google site 8.1.0 (OPM2.171019.012, Dec 2017, Telus Only)
Mr. Blanco said:
Thanks Badger . that's what i figured , but wanted to be safe as ive read you can't revert back but i'm assuming that's to the 8.0 os builds. Yeah i was all over it looking for my device build to flash the jan build but it's only showing the dec build for mine on the developers google site 8.1.0 (OPM2.171019.012, Dec 2017, Telus Only)
Click to expand...
Click to collapse
im pretty sure you can use the version (OPM1.171019.013, Jan 2018)
as you see, there isn't a Telus only build for every single release.
Hopefully someone who is more familiar will chime in and give you some assurance
dadoc04 said:
im pretty sure you can use the version (OPM1.171019.013, Jan 2018)
as you see, there isn't a Telus only build for every single release.
Hopefully someone who is more familiar with chime in and give you some assurance
Click to expand...
Click to collapse
I was kind of wondering that myself as i've noticed that too about the available builds , never the less i really appreciate your help bro
Hi,
I am using Pixel2 and had same touch issue with TWRP and got a fix from other forum (Thanks to Google)
Before rebooting into recovery disable Ambient display in settings screen.
Settings -> Battery -> Ambient display >> Switch off Always On
Now try to reboot into TWRP and it should work.
If its still not working try with disabling all options under Ambient display option.
Thank You
tiniwings said:
Hi,
I am using Pixel2 and had same touch issue with TWRP and got a fix from other forum (Thanks to Google)
Before rebooting into recovery disable Ambient display in settings screen.
Settings -> Battery -> Ambient display >> Switch off Always On
Now try to reboot into TWRP and it should work.
If its still not working try with disabling all options under Ambient display option.
Thank You
Click to expand...
Click to collapse
Tried this solution doesnt work on my pixel 2
6alaal said:
Tried this solution doesnt work on my pixel 2
Click to expand...
Click to collapse
I know the P2 is a little different than the P2XL, but, have you tried disabling screen lock security and then fastbooting into twrp?
Badger50 said:
I know the P2 is a little different than the P2XL, but, have you tried disabling screen lock security and then fastbooting into twrp?
Click to expand...
Click to collapse
Yeah it's really weird all this happened lost my root after installing the screen fix module in magisk sorry I'm using the P2XL

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