[Q] no sound at all!! - Nexus 7 Q&A, Help & Troubleshooting

I own a nexus 7 2012, unlocked, rooted, twrp recovery and stock lollipop.After following this
guide http://nexus7.wonderhowto.com/how-to/boost-stock-volume-levels-your-nexus-7-for-louder-sounds-all-around-0158699/#
i lost all the sound in my device!!!Even when i flashed the back-to stock-level zip, nothing happened and i have no sound at all.Probably this guide is not for lollipop, but i want your help.Is there any way to get back the sound, avoiding clean install and setting up the whole tablet from the beggining?

If you open the zip you downloaded, you will notice It contains an xml file. Find a copy of the same file and place it in /system/etc
Technically, you could download a factory image from google, extract the system.img from it and flash it using fastboot

Related

Nexus 4 Stock rom deleted

Hi everyone!
I have come to a slight problem, trying to flash an android L preview port for my N4. I rooted properly, but when CWM asked me if I wanted to fix boot, I unfortunately replied with Yes. After I lost my root, I tried rerooting, when I accidently selected a wipe all function. So, now I have no rom Just a CWM recovery.
I have downloaded a tar.gz factory image file for N4 (4.4.4) and tried adb pushing to the device. The transfer is successful, but when I try to install it from the sdcard (cwm), it reports failure. I googled and read a lot, but not much seems to be helping.
I am using a Mac, btw.
Thanks in advance!!
You cant install a .tgz via recovery. Instead you should download a flashable .zip of your rom. Try this.
CCody said:
You cant install a .tgz via recovery. Instead you should download a flashable .zip of your rom. Try this.
Click to expand...
Click to collapse
Yes, I keep trying to do that but without success.
O tried factory kitkat zip and I tried an L android I downloaded.
Could you provide me witha link to a flashable zip?
Then tell me what you want. A factory image or a custom rom. I would recommand you cyanogenmod. Downloaf the zip for your device. http://www.cyanogenmod.org/
To install stock do this:
Extract .tar.gz (using 7Zip) until you come up with folder named "occam-xxxxx"
Copy the files within it to your fastboot.exe folder
Reboot into boot-loader
Hit flash-all.bat
But you may download latest CM from https://download.cyanogenmod.org/?device=mako and install it via flash .zip in CWM (however I recommend Philz Touch Recovery)
I'd like to flash Nexus 4 port for Android L. I had downloaded android l zip file but when I try to flash it, installation aborted keeps popping up.
And once again, people keep mentioning fastboot.EXE and run a batch file, but again... I am on a Mac. It would mean a great lot if the instructions given were for a mac.
Thanks!
Here's what I did:
1. Install Wugfresh's NRT (search online for it)
2. Download the factory image from the Google website
3. Connect your phone in Recovery mode
4. Open NRT and let it update if it has to
5. Hit "Flash stock + Unroot"
6. The usage is clearly explained at every stage. You should ideally have no problems restoring your phone to a working state. Your data however is most likely lost. Sorry.
(PS: I don't usually recommend toolkits because they take away the fun in messing with the phone manually, but sometimes it becomes necessary to use them. This is one of those times )
I tried flashing CM 11 snapshot M8 release, but it gave me status 7, install failed. I tried to fix it by removing asserts and rezipping, and failed again, without a status.
I am trying to revert back to stock now, nothing else works, and neither will this, so it seems.
EDIT:
I flashed new bootloader and new radio, but when I tried to flash a stock rom, it failed again.
I don't know what to do anymore, I feel like throwing a phone against the wall and just getting a Nexus 5.
to flash the n4 L port, download the zip in the port thread and flash it in recovery. that's all. wipe before you flash.
there was no official L preview for the n4, so you can't flash it from the factory IMG, that's for the nexus 5.
simms22 said:
to flash the n4 L port, download the zip in the port thread and flash it in recovery. that's all. wipe before you flash.
there was no official L preview for the n4, so you can't flash it from the factory IMG, that's for the nexus 5.
Click to expand...
Click to collapse
Cwm reports unable to mount... i updated to 6.0.5.0 cwm, changed to twrp even using fastboot... But nothing is helping.

[Q] Read the Sticky, still can't flash stock or lollipop kernels

I wonder whether there is help for someone who thought he knew how to flash a kernel but apparently is deluded. I have the original nexus seven Wi-Fi tablet android version 4.3 build number JWR66V. The system still wants to update me to 4.3 because I ripped some files out of the cache directory to prevent OTA updates. I have both fastboot and adb. I have read the stickies about flashing.
The phone is rooted and the bootloader is unlocked. I use TWRP custom recovery, and it's a good thing, because I solidly bricked myself up just trying to get my lollipop. I know there are tools to root a nexus seven even with stock lollipop, so I thought I'd upgrade my phone to stock lollipop and then use one of those methods. I tried both the stock lollipop kernel and the one provided by chain fire, which I understand is rooted already. (I'm assuming upgrading to lollipop will lose me my root, unless I want to recover back to 4.3.)
I tried to do these things a couple of different ways. When I tried fast boot, I got the message "error: neither -p product specified nor ANDROID_PRODUCT_OUT set". There was a YouTube video suggesting how to deal with this error message. I'm pretty sure I followed the instructions but no go. (I was using the "flash all" command.) This was after I had put the file containing lollipop in the directory, both zipped and unzipped (so that I had an .img file instead of a zip file). I tried using both the zip file with all of the lollipop partitions and the system image file individually. No go. I also had a message that android-info.txt could not be found, even though it was in the same, working directory.
I could be wrong but I don't think you can install a complete updated kernel from a file on the device. I think that works only with update.zip.
I'm still thinking fastboot is my best bet, but there are dependencies apparently and I don't know what files to include in its directory. Then, am I wise to go to stock and then root, or should I simply flash the stock kernel already rooted? I assume that's what chainfire is providing, correct?
I notice the lollipop official ROM nor Chainfire’s supposedly-rooted image have any file named nakasi. I have only .img files, no .zip files.
I found a dozen sets of instructions on how to flash a kernel but something I need is missing from all of them. Does anyone know what it is or can anyone offer some helpful advice?
Thank you,
Leon M.

Having problems rooting Np6

I downloaded all the file needed to root this phone, but when I download the image file, it ends up being a TGZ file, not an img file. The same thing happened to me while I was trying to download an img file for my lg g3. I'm thinking it has something to do with my comp. Has anyone had this happen to them? If so, what's the work around? Thanks
I'm also having issues rooting my nexus 6p NRD90U
I bought it rooted so I downloaded the toolkit and did a format off it and made it completely stock etc. I restarted the phone and it was stuck on Google, so I restarted it again same results. It says No OS is installed any advice? I have tried stock recovery along with system,boot,vender and I used 4cores and a few different firmwares I found online Not at the same time. Is their a recovery file I can use?

Fixed 6P bootlooping, now i want to update to Oreo

Hi all, I posted this in the 6P bootloop thread, but didn't get a response. As that is a pretty LONG thread, i'm thinking my question may have gotten lost in the jumble.
Quick run down.
A few months back my 6P started the BLOD. I found the fix listed on these pages, applied it, and have been happily using my phone ever since. Phone is bone stock 7.1.2 other than the TWRP recovery and the modified EX kernel for 4 cores.
Since the fix, my phone FINALLY got the OTA update to go to Android 8.0 and i obviously want to get it done. My concern is HOW to do this without causing more headache.
Can anyone point me in the right direction? Should i use the OTA update or download the factory image from Google?
I've got some knowledge as i used to be into the "rooting" scene back in the day, but haven't for a while, so i feel a little lost.
Thanks for any help.
johnnyphive said:
Hi all, I posted this in the 6P bootloop thread, but didn't get a response. As that is a pretty LONG thread, i'm thinking my question may have gotten lost in the jumble.
Quick run down.
A few months back my 6P started the BLOD. I found the fix listed on these pages, applied it, and have been happily using my phone ever since. Phone is bone stock 7.1.2 other than the TWRP recovery and the modified EX kernel for 4 cores.
Since the fix, my phone FINALLY got the OTA update to go to Android 8.0 and i obviously want to get it done. My concern is HOW to do this without causing more headache.
Can anyone point me in the right direction? Should i use the OTA update or download the factory image from Google?
I've got some knowledge as i used to be into the "rooting" scene back in the day, but haven't for a while, so i feel a little lost.
Thanks for any help.
Click to expand...
Click to collapse
Well, for starters do NOT take the OTA. It will either fail or boot loop your phone. Due to the fact you have a modified boot.img you will need to update manually using fastboot with the full image. Re-apply the modified kernel after you finish updating the partitions, but BEFORE booting the first time. You can follow most guides on how to manually update a full image using fastboot, just add the step of flashing the modified kernel before booting.
Thanks for the reply and the help. If i could ask for a little more help, as this is my only phone.
Can you explain the difference between the modified boot.img and the modified kernel?
If i download the factory image from here (https://developers.google.com/android/images) is it ok to the get the latested one (Nov 2017) or do i need to get the original one (Sep 2017 as i'm on Fi)
Once i flash the factory image, is it going to replace the modified boot image as well as the modified kernel?
Follow the OP on this thread (https://forum.xda-developers.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279) in the downloads section there appear to be 2 files i would need, the "Boot.img from stock 6.17, 8.0 firmware" and "EX kernel version 5.03". Am i understanding that correctly?
Like i said, this is my only phone, and i'm probably just being overly paranoid about bricking it, but any clarification would be greatly appreciated.
johnnyphive said:
Thanks for the reply and the help. If i could ask for a little more help, as this is my only phone.
Can you explain the difference between the modified boot.img and the modified kernel?
If i download the factory image from here (https://developers.google.com/android/images) is it ok to the get the latested one (Nov 2017) or do i need to get the original one (Sep 2017 as i'm on Fi)
Once i flash the factory image, is it going to replace the modified boot image as well as the modified kernel?
Follow the OP on this thread (https://forum.xda-developers.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279) in the downloads section there appear to be 2 files i would need, the "Boot.img from stock 6.17, 8.0 firmware" and "EX kernel version 5.03". Am i understanding that correctly?
Like i said, this is my only phone, and i'm probably just being overly paranoid about bricking it, but any clarification would be greatly appreciated.
Click to expand...
Click to collapse
Use the latest November image. The boot.img contains the kernel and ramdisk, critical files necessary to load the device before the filesystem can be mounted. When you flash the new boot.img contained in the Google image, it will overwrite the patched kernel. You then need to re-patch it by installing EX kernel before booting. EX writes to (modifies) the stock boot.img. There are also pre-modifed boot.img files floating around. You will probably get more detailed help in the dedicated thread. Learning to flash manually (or remember how) is not really a big deal and a necessary skill for modding (and for getting yourself out of trouble). Good luck. :good:
v12xke said:
Use the latest November image. The boot.img contains the kernel and ramdisk, critical files necessary to load the device before the filesystem can be mounted. When you flash the new boot.img contained in the Google image, it will overwrite the patched kernel. You then need to re-patch it by installing EX kernel before booting. EX writes to (modifies) the stock boot.img. There are also pre-modifed boot.img files floating around. You will probably get more detailed help in the dedicated thread. Learning to flash manually (or remember how) is not really a big deal and a necessary skill for modding (and for getting yourself out of trouble). Good luck. :good:
Click to expand...
Click to collapse
Ok, so 1 last time (sorry)
1 - Downloaded the latest 8.0.0 factory image from google (this contains the bootloader, radio, and partitions (.zip).
2 - Get phone to fastboot and apply the above 3 new images
3- before rebooting, flash oreo4core (new, modified boot.img), TWRP recovery.img
4- reboot to recovery (TWRP) and apply the modified EX kernel
5 - reboot and (hopefully) profit
Am i missing anything, or doing anything that isn't needed?
johnnyphive said:
Ok, so 1 last time (sorry)
1 - Downloaded the latest 8.0.0 factory image from google (this contains the bootloader, radio, and partitions (.zip).
2 - Get phone to fastboot and apply the above 3 new images
3- before rebooting, flash oreo4core (new, modified boot.img), TWRP recovery.img
4- reboot to recovery (TWRP) and apply the modified EX kernel
5 - reboot and (hopefully) profit
Am i missing anything, or doing anything that isn't needed?
Click to expand...
Click to collapse
<<Disclaimer: I don't use the 4 core kernel, so I don't know if it comes with installer script or someone has just modified the latest boot.img>> Unzip the "partitions" zip you refer to and extract those image files to the same folder as bootloader and modem. For example, you can keep TWRP recovery if you don't flash the recovery.img. That is how you preserve your custom recovery. So in other words you'll now have a folder (your ADB folder?) with 5 image files.... bootloader, radio, boot, system, and vendor all in one folder. <<Note: it is my understanding you just substitute the latest oreo4core file (should be boot.img?) If this is true, copy that file into your ADB folder and let it overwrite the stock boot.img. Stop. Copy over flash-all.bat, change the *.bat extension to *.txt and open in notepad. You will see (and can copy/paste) the fastboot commands to get you started with bootloader and radio. Then flash the last 3 (boot, system, vendor). At this point you can reboot into the OS. Since you substituted the oreo4core boot.img file for the stock boot.img there is no need to use TWRP to flash anything. That and since you skipped flashing the recovery.img, TWRP is still there.
v12xke said:
<<Disclaimer: I don't use the 4 core kernel, so I don't know if it comes with installer script or someone has just modified the latest boot.img>> Unzip the "partitions" zip you refer to and extract those image files to the same folder as bootloader and modem. For example, you can keep TWRP recovery if you don't flash the recovery.img. That is how you preserve your custom recovery. So in other words you'll now have a folder (your ADB folder?) with 5 image files.... bootloader, radio, boot, system, and vendor all in one folder. <<Note: it is my understanding you just substitute the latest oreo4core file (should be boot.img?) If this is true, copy that file into your ADB folder and let it overwrite the stock boot.img. Stop. Copy over flash-all.bat, change the *.bat extension to *.txt and open in notepad. You will see (and can copy/paste) the fastboot commands to get you started with bootloader and radio. Then flash the last 3 (boot, system, vendor). At this point you can reboot into the OS. Since you substituted the oreo4core boot.img file for the stock boot.img there is no need to use TWRP to flash anything. That and since you skipped flashing the recovery.img, TWRP is still there.
Click to expand...
Click to collapse
Thank for the help! Everything seems to be up and running. I know you said you don't use the "4 cores" (can only assume your either on a different phone or yours isn't affected by the BLOD), but do you know if i still need to apply the EX kernel update, or know of a way to tell if it's already been applied?
Thanks again for all the help. I was pretty much in the right direction, but being as how i'd been away from it for a while, i wanted some backup
johnnyphive said:
Thank for the help! Everything seems to be up and running. I know you said you don't use the "4 cores" (can only assume your either on a different phone or yours isn't affected by the BLOD), but do you know if i still need to apply the EX kernel update, or know of a way to tell if it's already been applied? Thanks again for all the help. I was pretty much in the right direction, but being as how i'd been away from it for a while, i wanted some backup
Click to expand...
Click to collapse
I don't think you can flash EX kernel from now on. I think you have to use a modded boot.img that will contain his kernel/ramdisk. This is my guess. You really should be getting your information in the dedicated thread where everyone is actually installing and using it. Google "oreo 4 core" and you will find the XDA thread is the first hit. Good luck. :good:

Almost soft-brick my device. Need help, Emergency!!

Hey guys!
This is my first ever thread on XDA! And my problem goes like
I have a Asus max Pro m2 device. And also I'm familiar with things like custom ROMs, custom recovery, rooting and all that stuff. I have been using custom ROMs, etc etc.. from a long time. And I use TWRP as my recovery system. Recently I tried to install lineage OS on my phone, but it gave me an error 7. Then I searched on google about what is error 7. Tried all the solutions, nothing worked. Then I thought it's happening because of my phone's modem. So I searched for the latest modem file for my device, then I got a file on XDA. And that was a TWRP backup file of the Modem and the EFS. So I downloaded it and restore the file through TWRP. And from there, I'm not able to install any custom rom on my device. I tried many of them but couldn't. All of them have me an error 7.
But before that everything was fine. I was in evolution X custom rom. And that file ruined my device completely. Now I'm completely helpless, clueless. So what to do. Any expert suggestions?
PLEASE RESPOND!!!
Hi, if you didn´t solve this problem watch this video that has the solution for asus zenfone max pro m2 brick devices. Keep in mind that when you do this, the phone gonna be with the first oreo version, relock bootloader and unroot your device so you have to uptade manually.
Copy the zip ROM file to your PC and unzip it using your favorite archiver (for example, 7-zip);
After unpacking find META-INF folder and go the META-INF/com/google/android line. In the last directory you will find two files called "update-binary" and "updater-script". We are interested in the latter one;
Rename "updater-script" to "updater-script.txt" and open it in any text editor (for instance, Notepad++);
Now remove the line starting with "assert" to the next semi-colon. Usually it is the first or a few first lines in the beginning of the text file;
Save the modified file;
Rename "updater-script.txt" back to "updater-script";
Update all files you have unpacked;
Copy the modified zip-file on your phone;
Reboot your Android device to recovery mode and try to update it again. Status Error 7 should be gone.

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