I tried to install clockworkmod recovery on my Sprint Samsung Epic 4g, and tried to root it, in preparation for flashing a custom rom. I failed. Please help me.
Instead of describing exactly how I got the phone into its present condition -- I don't think I could do so accurately -- I will, for starters, describe the present condition of the phone.
When I power on, the phone boots into Android system recovery <3e>. Must remove battery to turn it off.
After removing battery, I can boot into Android system recovery <3e>. In this recovery environment, I did a wipe data/factory reset and wiped the cache partition. If I select the reboot option, the phone restarts but hangs on the initial Samsung screen.
After removing the battery, I can also boot into download mode.
After removing the battery, if I plug in the micro usb from the wall charger, or if I connect the micro usb from my pc, the phone boots into Android system recovery <3e>.
Is this a hopeless situation? Or, can I install clockworkmod recovery, root the phone, and flash a custom rom?
You have failed to explain what exactly you have done to root your phone, especially since there are different methods of doing so, and without your explanation, no one can you help you.
De'Zsa said:
You have failed to explain what exactly you have done to root your phone, especially since there are different methods of doing so, and without your explanation, no one can you help you.
Click to expand...
Click to collapse
Please try to be patient with me. I will recount what I did to the best of my ability to remember.
I began with the Samsung_Epic_4G:_Full_Update_Guide on the cyanogenmod site.
I'll quote the guide and, along the way, I'll indicate what I did:
"Download DRockstar's ClockworkMod Recovery, and the Heimdall Suite:
DRockstar's ClockworkMod Recovery: download
md5: 9ae119a8202d594226e88796dfb8d0c2
Windows:
Heimdall Suite 1.3.2: Download
Windows ONLY:
Power off the Samsung Epic 4G and connect the microUSB to the computer but not the Samsung Epic 4G.
Boot the Samsung Epic 4G into download mode by holding down the 1 key on the physical keyboard and Power.
Connect the microUSB cable to the Samsung Epic 4G.
Run the included zadig.exe in the drivers folder of the Heimdall Suite.
From the menu, choose Options » List All Devices.
From the drop down, select Samsung USB Composite Device or Gadget Serial.
Click Install Driver.
NOTE: A prompt may appear warning that the installer is unable to verify the publisher of the driver. Ignore it and select "Install this driver anyway."
Heimdall can now be used safely on the Windows computer.
Power off the Samsung Epic 4G and connect the microUSB to the computer but not the Samsung Epic 4G.
Boot the Samsung Epic 4G into download mode by holding down the 1 key on the physical keyboard and Power.
Connect the microUSB cable to the Samsung Epic 4G.
Untar DRockstar's ClockworkMod Recovery into the Heimdall directory.
On the computer, open terminal and run the following command from the Heimdall directory:
heimdall flash --recovery recovery.bin
A blue transfer bar will appear on the phone showing the recovery being transferred. The device will reboot automatically.
The Samsung Epic 4G now has ClockworkMod Recovery installed. Continue to the next section."
I completed all of the above steps successfully. Next, it says,
"Flashing CyanogenMod
NOTE: In order to flash CyanogenMod via ROM Manager, root access is required. Attaining root access is outside the scope of this wiki page.
If the Epic 4G has been rooted, unlocked, etc. through steps other than the method described above or running a custom ROM other than CyanogenMod and you are having issues flashing or booting CyanogenMod, it is recommended the Epic 4G be returned to stock & start over with the full instructions provided above."
At this point, I decided to root the phone so I could use rom manager to flash CyanogenMod. I used the root samsung epic 4g at the androidauthority site to try to root the phone. I was able to complete all of the steps, that is:
Download the rooting package (SamsungEPIC4GRooting-Kit.zip, 6.48 MB) from here to your PC.
Extract the downloaded ZIP file using any extraction software such as WinZIP or 7-Zip. You will get 3 files; place the extracted files inside a single folder.
On your PC, launch the Odin application by double-clicking the odin3 v1.85.exe file. This should launch the Odin3 application on your PC.
Switch off your Galaxy Epic 4G.
Boot into Download Mode. You can do this by pressing the number 1 key on your phone while turning the phone on.
With Odin3 running, connect your phone to your computer via USB cable.
Odin3 will automatically detect your phone. If successful, the word “Added!” will appear in Odin3’s message box.
If you don’t receive any message, you need to install or reinstall the appropriate device drivers on your computer. Also make sure that USB debugging is enabled on your phone.
Select the PDA tab in Odin3’s user interface. A dialog box will appear, asking you to browse for a file. Browse for the extracted .tar file; in this case, select acs-eb30-clockwork-epic-touch-4g-sep-20-4-00-pm.tar.
Make sure that you do not change any other settings in Odin3, as it may cause irreversible damage to your phone.
Select the Start button in Odin3 to start rooting your Samsung Epic 4G. It may take about 2 to 5 minutes for the whole rooting process to finish. If rooting is successful, you will get a “PASS” message in Odin3’s message box.
Disconnect your phone.
Congratulations! You have successfully rooted your Samsung Epic 4G SPH-D700. Enjoy the many benefits of having a rooted device such as installing custom ROMS, mods, hacks, and themes.
Next, returning to the cyanogenmod wiki (Samsung_Epic_4G:_Full_Update_Guide). I did these steps:
Downloaded the latest version of CyanogenMod.
Downloaded the Google Apps for the device.
Placed the CyanogenMod update.zip file on the root of the internal memory.
Placed the Google Apps .zip on the root of the internal memory also.
The next step was to Boot into the ClockworkMod Recovery.
When I tried to do so, I think I got into the <3e> screen that I described in my first post.
I Selected the option to Wipe data/factory reset.
Then selected the option to Wipe cache partition.
Next, Selected Install zip from sdcard.
When I tried to do that, however, I got an error saying the file signature was not verified.
That's how I got stuck in the <3e> recovery mode.
What you have done is used an article that is say, out of whack. If you looked in the comments, you would see that others have failed with that method or their phone broke, which leads to this video: http://youtu.be/QTQ6Rn0FBSk
You could have used that video, but here is where you screwed up even more..
You downloaded the CM and Google apps zip to your internal memory when you were supposed to placed them into the root of your SD card. And to add on to your mistake, you already wiped your system, cache, etc. without backing up your current ROM..
You already wiped your system and such, and I honestly wouldn't know where to go from there.
However, I can lead you to this video: http://youtu.be/QTQ6Rn0FBSk to unroot (possibly unbrick your phone).
And I can give you this link: http://forum.xda-developers.com/showpost.php?p=28080049 because someone has had the same problem as you do now.
With that, Best of luck to you and your phone!
Happy New Year!
Please note: I placed the zip file on the external sd card. I just checked the external sd card with the card reader on my pc, and that's where the zip file is. I mistakenly remembered putting it in internal memory.
Does that make a difference in the advice you gave me?
GOOD NEWS! Using the link you sent to me for the you tube video, I returned my phone to FC09.
Glad I could help [just a little]. :good:
Extremely late, I know.
I have a Nexus 5 32GB that's about 14 month old. Was running Lollipop 5.1 which was installed through OTA updates (4.44 >5.0 >5.01>5.1). The device is stock and unrooted.
One day, after powering the device up, it went into the boot screen and never managed to finsih the boot (for hours).
After reading extensively on this and other forums , here are the steps I tired , without success:
1. Go to bootloader and press Start
2.Go to bootloader , erase cache
3.Go to bootloader erase user data (factory reset).
I then tried to flash the factory image back. I tried all Lollipop versions from the google developers page of factory images.
starting with 5.1.0 (LMY47I) and going down. All flashing was completed successfully, but the problem remains.
Then I tried 4.4.4 (KTU84P) and the device finally booted up, but it was crippled: Most times It only sees a storage of 16GB , the phone does not recognize any cellular carriers, google play crashes, camera crashes, gallery crashes. An error states that "no external memory is available". Basically it was useless.
I took the phone to an LG lab. They said I need to replace the motherboard. Costs about 200$ !!
I was about to get a new phone , but decided to try one more google search for a fix.
This guide is for any poor soul in the same state.
This issue can be solved without replacing the motherboard for 200$.
The problem in my case was that the /persist partition was degraded, and could not mount.
I found out by trying to follow this guide: http://android.stackexchange.com/qu...dots-lollipop-screen-after-hard-factory-reset
I got as far as activating ADB Sideload when I got the error "cannot mount /persist".
This is a software problem.
Her's how to fix it (It's a long and detailed guide - but worth the result):
First, you must enable USB debugging mode , if it was not enabled (if it is enabled you can skip the first step of this guide) . The way to do that is to flash a stock image that will load, even if not fully working. In my case I could flash version 4.4x and get the phone to load. I am not aware of any other way to enable USB debugging, other than from within a working OS. If someone knows a way - please post it.
The easiest way I found to flash my phone is using Julian OS' script. You can download the stock image5.0 and 5.01 with the script from here:
https://www.androidfilehost.com/?w=files&flid=22367
You will need to adapt the 4.4x firmware to have the script flash it, but it's very easy, just a couple of files to rename.
When you open Julian's zip file you will see that he uses a script that flashes the firmware's images one by one. What I did was download the stock images from Google https://developers.google.com/android/nexus/images , used winrar to extracrt all the files from the .tgz file to a folder, then unzip the only zip file there (image-hammerhead-xxxxx.zip) which contains 5 img files. I then renamed the radio-hammerhead-xxxxx.img to radio.img and bootloader-hammerhead-xxxx.img to bootloader.img. Now all the file names comply with Julian's script. From Julian's archive copy the files "From Bootloader.bat" and "fastboot.exe" to the folder where all the images you just renamed are.
Put the phone in bootloader mode (turn the phone off, press the Vol- and the power buttons). Once the the phone is in bootloader mode, connect it to the PC and run "From Bootloader.bat" and follow the onscreen instructions. In about 2 minutes, your phone will be flashed.
Turn the phone on, it should load the OS. Disregard all the error messages, and don't bother setting the phone up. If you skip wifi, and don't have a sim in the phone you can finish the basic setup quickly.
Next you need to get developer tools activated: Settings>about phone>Build number. Tap 7 times on the build number and this will unlock Developer tools. Go back to settings and the new Developer Tools and enable usb debugging. Approve any popups.
*** I am not aware of how to enable usb debugging if you cannot go into the settings. If non of the stock images loads for you, search for a way to get usb debugging working , or else you cannot continue. You need this for ADB to connect to the phone.****
Next, you need to have ADB on your PC, and it should be able to reach your phone. If you already have - then skip to the next step. If you don't - then here is how to get the latest version:
Go here and download the installer https://developer.android.com/sdk/index.html#Other
Install the file and when it's done run SDK manager. Choose only the first 2 tools (Android sdk tools and Platform tools), this will install the latest adb and fastboot tools. To make sure all is installed open a command prompt (Click Start, type cmd in the search and run cmd.exe) and type adb. You should see all the adb possible commands typed. Now you can test if your phone can be reached by adb: connect your phone (remember usb debugging must be on!) and type: adb devices. After a few seconds you should see something like this:
List of devices attached
024703f599cc8feb device
If you get this, it means you have usb debugging enabled and a proper usb driver installed and you can go to the next step . If there is no device in the list you need to install/update the USB driver:
You have to make sure that when you connect your phone with USB debugging on, you have 2 entries in Winodws Device manager:
Under Portable devices >Nexus 5 , and under Android device> Android composite ADB Interface.
If the second one is missing, ADB will not work and you can't continue. There are 2 ways to fix that :
1. You can install an Android driver called Universal Naked Driver 0.73 from here: http://forum.xda-developers.com/showthread.php?t=2386956. Unzip the file to a folder.
The author of that guide states you need to uninstall any driver that already exists. This proved tricky because Windows would not uninstall the Nexus 5 driver. I decided to install it on a PC that has no android driver.
When you connect the phone to a windows 7 pc for the first time it will search for a driver. I disconnected the internet and windows installed a generic driver. In device manager I saw Nexus 5 with a yellow triangle. I Right clicked on it > update driver software > Browse my computer for driver software and point to the folder you unzipped the driver. You will get a warning - allow the installation.
2. If that does not work or if you don't have another "virgin" PC try this:
Run SDK Manager, under Extras mark Google USB driver. You don't need anything else marked. Install the driver.
Now connect your phone to the PC in normal mode (not bootloader!) . Open device manager. You should have two entries: Portable devices >Nexus 5 and Android device > Android Composite ADB Interface
If the second one is missing, but the Nexus 5 is properly installed, Right click on the Nexus 5 device >Update driver software > Browse my computer for driver software >Let me pick from a list. Now make sure that "Show compatible Hardware" is ticked . You should now have an entry called "USB composite device". Choose that and let it install. When it's done, if you still have an an Unknown device >Nexus 5 and no Android Composite ADB Interface in device manager, then unplug the phone and reconnect it again . You should now have both devices installed.
If by chance this does not work, and you have a Nexus 5 with a yellow error , right click it>update software driver> Browse my computer.> and point it to the Universal Naked Driver folder or the SDK>Extras>Google USB driver folder and it should update so both devices appear (Nexus 5 and ADB).
Once adb can see your pohne go here, to read bitdomo's guide to fix the broken persist partition.
http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
There are some prerequisites to getting this to work:
The first one is that the phone can be reached by ADB, this is why you needed the usb debugging mode to be turned on, and the proper usb driver installed.
Second, you need to install a custom recovery image. Don't worry, you will overwrite it later. The one I used is TWRP. Get the latest version from here:
http://techerrata.com/browse/twrp2/hammerhead
To install I recommend you copy Fastboot.exe and the TWRP file to an empty folder on your PC . Rename the TWRP file to "recovery.img". Open a command prompt in the folder (see here if you don't know how http://www.techsupportalert.com/content/how-open-windows-command-prompt-any-folder.htm) , in the black window type: fastboot flash recovery recovery.img and hit Enter. Wait a few seconds and it will finish.
Last, you need to root your device. There are many ways to do this. I did this very simply by downloading CF-Auto-Root from https://autoroot.chainfire.eu/ The file you need is this: https://download.chainfire.eu/363/CF-Root/CF-Auto-Root/CF-Auto-Root-hammerhead-hammerhead-nexus5.zip . Unzip it, put your phone in bootloader, run root-windows.bat.
Now you are prepaired... Follow the guide by bitdomo . Open a command prompt , and run the 2 commands bitdomo wrote. You will get a series of questions , type y followed by Enter until it's all done.
SInce you are still in bootloader mode, and a big START is at the top of the screen, click the power button to reboot. Now your oS 4.4x should load properly. Make sure everything is working.
I did not follow the steps for the wifi and BT fix , because they worked fine (and still do 4 months later) , but you can go ahead and do that too.
Now you can flash to the latest firmware 5.10 - download the file from the developer site I gave before, use Jason Os's script to flash the image, and lock the device. Done! Boot up the device and make sure it recognizes the right amount of RAM on your phone (16 or 32GB). If it does, then all is well .
When I first booted the device , I saw that it only recognized 16GB instead of 32GB. To solve this install TWRP again, go to Wipe>Format data . Then reboot the device and make sure you have 32GB.
If you like the stock recovery instead of TWRP you can use Fastboot to flash the original recovery.img.
Now you have a working Nexus 5 , v5.10.
Thanks to LyricWulf and bitdomo for their life saving guides. I hope this helps others in the same spot, and saves them 200$ .
stuck at unlock step
how u unlock nexus 5 when stuck booplop n cnt go to android screen?alrdy using ths step "fastboot oem unlock" when i reboot for unlock,stuck at bootloop n alrdy w8ing 24hr still bootloop cnt see android home screen...n i go to restart nexus5,n locked again... i just stuck on this place,cnt go to next step..pls help me
sry my englsh so bad
Thanks! Helped me to save my N5!
Do not need to exactly as it is posted but the directions is good!
Thanks again.
killian.1140 said:
how u unlock nexus 5 when stuck booplop n cnt go to android screen?alrdy using ths step "fastboot oem unlock" when i reboot for unlock,stuck at bootloop n alrdy w8ing 24hr still bootloop cnt see android home screen...n i go to restart nexus5,n locked again... i just stuck on this place,cnt go to next step..pls help me
sry my englsh so bad
Click to expand...
Click to collapse
Not sure what your problem is, but if you are stuck at the boot screen (with the colored dots spinning) you might have the smae problem I describe. You can try to go to bootloader and wipe the cache, if that does not help and you don't mind a wiping all your data do a factory reset. , Go to recovery mode (third option in bootloader), then press the powr and vol up buttons together several times until you get into recovery. Then choose what you want to wipe.
If that does not restore your phone you need to follow my guide. Probably your persist partion is degraded and needs to be fixed. If you follow my guide you will find out what your problem is.
Good luck
Or just read the stickies.
I had the same problem, and for me, simple NAND restore from TWRP recovery solved this issue. I recently made this NAND backup for no reason and it happens to be a very good move. Cheers
Thank you so much for this! You saved my phone!
volvoxxda said:
I had the same problem, and for me, simple NAND restore from TWRP recovery solved this issue. I recently made this NAND backup for no reason and it happens to be a very good move. Cheers
Click to expand...
Click to collapse
But for that you have had to install TWRP in the first place...
Mine was stock.
Where is the backup saved?
Mine was rooted + TWRP recovery and I saved my backup on flash drive with TWRP's backup option. I was able to boot into boot menu (pwr + vol-) and it would let me to enter into TWRP only. For me it was enough to initiate a restore process..
volvoxxda said:
Mine was rooted + TWRP recovery and I saved my backup on flash drive with TWRP's backup option. I was able to boot into boot menu (pwr + vol-) and it would let me to enter into TWRP only. For me it was enough to initiate a restore process..
Click to expand...
Click to collapse
Flash drive? Do you mean the Nexus internal memory?
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External, like on this picture.
Final solution: power button micro tactile switch was faulty, causing boot loop from time to time. Replacing that little bastard solved this heartbreaking issue
volvoxxda said:
Final solution: power button micro tactile switch was faulty, causing boot loop from time to time. Replacing that little bastard solved this heartbreaking issue
Click to expand...
Click to collapse
Did you just replace the button or did you have to replace something more?
Thanks
Just the button. You can DIY, it's easy.
worked
worked great. confusing in the start but got it working. Thanks for a life saving guide for nexus 5
incredible
Hi eross,
I registered and logged in just to say thank you for this amazing tutorial. I've been trying to repair my N5 for about 12 hours, and I was about to give up when I saw this post. You saved my Nexus!!
Thanks again. :victory::highfive::good:
eross said:
Not sure what your problem is, but if you are stuck at the boot screen (with the colored dots spinning) you might have the smae problem I describe. You can try to go to bootloader and wipe the cache, if that does not help and you don't mind a wiping all your data do a factory reset. , Go to recovery mode (third option in bootloader), then press the powr and vol up buttons together several times until you get into recovery. Then choose what you want to wipe.
If that does not restore your phone you need to follow my guide. Probably your persist partion is degraded and needs to be fixed. If you follow my guide you will find out what your problem is.
Good luck
Click to expand...
Click to collapse
What if you cannot even get into recovery because it is missing?
Sent from my SM-G920T
ambervals6 said:
What if you cannot even get into recovery because it is missing?
Sent from my SM-G920T
Click to expand...
Click to collapse
You can try to download the stock firmware that's installed on your phone and flash the recovery img, or flash twrp recovery.
help
eross said:
This is a Nexus 5 32GB that's about 14 month old. Was running Lollipop 5.1 which was installed through OTA updates (4.44 >5.0 >5.01>5.1). The device is stock and unrooted.
Yesterday after powering the device up, it went into the boot screen and never managed to finsih the boot (for hours).
After reading extensively on this and other forums , here are the steps I tired , without success:
1. Go to bootloader and press Start
2.Go to bootloader , erase cache
3.Go to bootloader erase user data (factory reset).
I then tried to flash the factory image back. I tried all Lollipop versions from the google developers page of factory images. (can't post links yet...)
starting with 5.1.0 (LMY47I) and going down. All flashing was completed successfully, but the problem remains.
Then I tried 4.4.4 (KTU84P) and the device finally booted up, but it is crippled: Most times It only sees a storage of 16GB , the phone does not recognize any cellular carriers, google play crashes, camera crashes, gallery crashes. An error states that "no external memory is available". Basically it is useless.
I am wondering if it is a software or hardware problem. It appears as though part of the phone's memory is not functioning . Is there a way to check this? Is there a way to fix this?
Thanks
Edit: Just came back from an LG lab. Bad news. Need to replace the motherboard. Costs about 200$ !! Can't find anything cheaper on ebay. Guess it's time for a new phone
Edit #2 - SOLVED !!:laugh:
OK, this for any poor soul in the same state. This issue can be solved without replacing the motherboard for 200$.
The problem in my case was that the /persist partition was degraded, and could not mount. Here is how I found it out, and how I fixed it:
First, try to flash a stock image that will load, even if not fully working. You will need this later. In my case I could flash version 4.4x and get the phone to load.
The easiest way I found to flash my phone is using Julian OS' script. You can download the stock image5.0 and 5.01 with the script from here:
https://www.androidfilehost.com/?w=files&flid=22367
You will need to adapt the 4.4x firmware to have the script flash it, but it's very easy, just a couple of files to rename.
When you open Julian's zip file you will see that he uses a script that flashes the firmware's images one by one. What I did was download the stock images from Google https://developers.google.com/android/nexus/images , used winrar to extracrt all the files from the .tgz file to a folder, then unzip the only zip file there (image-hammerhead-xxxxx.zip) which contains 5 img files. I then renamed the radio-hammerhead-xxxxx.img to radio.img and bootloader-hammerhead-xxxx.img to bootloader.img. Now all the file names comply with Julian's script. From Julian's archive copy the files "From Bootloader.bat" and "fastboot.exe" to the folder where all the images you just renamed are.
Put the phone in bootloader mode (turn the phone off, press the Vol- and the power buttons). Once the the phone is in bootloader mode, connect it to the PC and run "From Bootloader.bat" and follow the onscreen instructions. In about 2 minutes, your phone will be flashed.
Turn the phone on, if you are lucky it will load the OS. Disregard all the error messages, and don't bother setting the phone up. If you skip wifi, and don't have a sim in the phone you can finish the basic setup quickly.
Next you need to get developer tools activated: Settings>about phone>Build number. Tap 7 times on the build number and this will unlock Developer tools. Go back to settings and the new developer tools and enable usb debugging. Approve any popups.
I am not aware of how to enable usb debugging if you cannot go into the settings. If non of the stock images loads for you, search for a way to get usb debugging working , or else you cannot continue. You need this for ADB to connect to the phone.
Once this is done , boot the phone into debugging mode.
Read the guide here http://android.stackexchange.com/qu...dots-lollipop-screen-after-hard-factory-reset
I got as far as activating ADB Sideload when I got the error "cannot mount /persist". I then understood what the problem was. If you get the same error - you are in luck!
Then go here, to learn how to fix the broken persist partition.
http://forum.xda-developers.com/google-nexus-5/general/guide-to-fix-persist-partition-t2821576
There are some prerequisites to getting this to work.
The first one is that the phone can be reached by ADB, this is why you needed the usb debugging mode.
Second, you need to install a custom recover image. Don't worry, you will overwrite it later. The one I used is TWRP. Get the latest version from here:
http://techerrata.com/browse/twrp2/hammerhead
To install I recommend you copy Fastboot.exe and the TWRP file to an empty folder on your PC . Rename the TWRP file to "recovery.img". Open a command prompt in the folder (see here if you don't know how http://www.techsupportalert.com/content/how-open-windows-command-prompt-any-folder.htm) , in the black window type: fastboot flash recovery recovery.img and hit Enter. Wait a few seconds and it will finish.
Third, you need to install an Android driver called Universal Naked Driver 0.73 from here: http://forum.xda-developers.com/showthread.php?t=2386956. Unzip the file to a folder.
Since the author of that guide states you need to uninstall any driver that already exists, I decided to install it on a PC that has no android driver. When you connect the phone to a windows 7 pc for the first time it will search for a driver. I disconnected the internet and windows installed a generic driver. In device manager I saw Nexus 5 with a yellow triangle. I Right clicked on it > update driver software > Browse my computer for driver software and point to the folder you unzipped the driver. You will get a warning - allow the installation.
Last, you need to root your device. (I think this can also be done from within TWRP , but I am not sure how...) I did this very simply by downloading CF-Auto-Root from https://autoroot.chainfire.eu/ The file you need is this: https://download.chainfire.eu/363/CF-Root/CF-Auto-Root/CF-Auto-Root-hammerhead-hammerhead-nexus5.zip . Unzip it, put your phone in bootloader, run root-windows.bat.
Now you are prepaired... Follow the guide by bitdomo . Open a command prompt where adb.exe is located , and run the 2 commands bitdomo wrote. You will get a series of questions , type y followed by Enter until it's all done.
SInce you are still in bootloader mode, and a big START is at the top of the screen, click the power button to reboot. Now your oS 4.4x should load properly. Make sure everything is working.
Now you can flash to the latest firmware 5.10 - download the file from the developer site I gave before, use Jason Os's script to flash the image, and lock the device.
When I first booted the device , I saw that it only recognized 16GB instead of 32GB. To solve this install TWRP again, go to Wipe>Format data . Then reboot the device and make sure you have 32GB.
If you like the stock recovery instead of TWRP you can use Fastboot to flash the original recovery.img.
Now you have a working Nexus 5 , v5.10.
Thanks to LyricWulf and bitdomo for their life saving guides. I hope this helps others in the same spot, and saves them 200$ .
Addendum: According to bitdomo, installing a custom recovery like TWRP enables USB debugging by default even if the phone does not boot. I have not tried this myself, but this means you can foergo installing os 4.4x , and go straight to ADB and run the command that fixes the persist partition.
Go ahead and try it. It will save you a lot of time!
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My N5 has exact problem as yours even same errors of camera and playstorw crashing when i loaded older android version.. now im positive your instructions will help me but im having some trouble with your steps i do not know how to type comnands with ADB .. im truly novice and dont want to damage the phone more could you simplify the steps or make a video please? Thank you
Sorry, I can't make it any simpler than that. I can't make a video now because my phone is fixed. Adb is very simple, it's like an old DOS window where you type the text. I would follow Bitdomo's advice and start by installing TWRP. This will get you USB debugging, and you can run ADB and follow his instructions to fix the persist partition.
I made the serious mistake of installing Kingroot which failed installing the first time, then it said try again, then it worked but totally took over every aspect of my phone with no apparent way to delete any of the new "features". It didn't seem to be as much about installing root as it was interested in installing some apps they force you to install which totally takes over your phone. (Side note - it is a shame that this is sold as a rooting software, it should be in reality named a virus or malware and avoided. Too bad for BLU users there doesn't seem to be any other way to attempt a root)
Then installing supersu-me created more havoc, then trying to re-install Kingroot completely locked my phone and put it in a boot loop.
Now upon first attempt, I can't seem to make SP Flash Tool or MTK Droid talk to the phone (first time trying now). I installed all the drivers that came with the forced install .exe (which installs the drivers even when no "unknown device" ever appears in device manager) but I have not yet found any "unknown device" in the Device Manager before or after installing these drivers.
When there is no data cable connected, the recovery menu must be used as the only method to power down the phone because it loops on and on with an attempted power up until the battery runs down. However after using the green on black background recovery menu (hold in VolUp and Power), and making the selection to power down, the phone finally powers down. Unfortunately, as soon as the data cable is inserted into the phone, it begins the boot loop again which makes the laptop ding-dong indicating USB driver loading/unloading over and over.
There are options on the green/black recovery menu to load from SD card and to enable ADB but I can't figure out what driver to use and which option on the green/black recovery to attempt. Of course the factory restore option did nothing and the options for ADB, Fastboot and load from SD card seem promising but all I can find for an image is a RAR file which appears as the format of someone's SP Flash Tool dump, and includes the scatter file MT6582_Android_scatter.txt plus other *.img and *.bin files.
With no way to get into my phone, I don't know how to attempt to load this image which I believe is the extraction from the SP Flash tool. I have installed CDC/ACM driver install package, Google Inc USB, Media Tek usbser from 2011 & 2007, usbvcom and Usbvcom_brom.
Any ideas? Thanks!
Donphillipe said:
I made the serious mistake of installing Kingroot which failed installing the first time, then it said try again, then it worked but totally took over every aspect of my phone with no apparent way to delete any of the new "features". It didn't seem to be as much about installing root as it was interested in installing some apps they force you to install which totally takes over your phone. (Side note - it is a shame that this is sold as a rooting software, it should be in reality named a virus or malware and avoided. Too bad for BLU users there doesn't seem to be any other way to attempt a root)
Then installing supersu-me created more havoc, then trying to re-install Kingroot completely locked my phone and put it in a boot loop.
Now upon first attempt, I can't seem to make SP Flash Tool or MTK Droid talk to the phone (first time trying now). I installed all the drivers that came with the forced install .exe (which installs the drivers even when no "unknown device" ever appears in device manager) but I have not yet found any "unknown device" in the Device Manager before or after installing these drivers.
When there is no data cable connected, the recovery menu must be used as the only method to power down the phone because it loops on and on with an attempted power up until the battery runs down. However after using the green on black background recovery menu (hold in VolUp and Power), and making the selection to power down, the phone finally powers down. Unfortunately, as soon as the data cable is inserted into the phone, it begins the boot loop again which makes the laptop ding-dong indicating USB driver loading/unloading over and over.
There are options on the green/black recovery menu to load from SD card and to enable ADB but I can't figure out what driver to use and which option on the green/black recovery to attempt. Of course the factory restore option did nothing and the options for ADB, Fastboot and load from SD card seem promising but all I can find for an image is a RAR file which appears as the format of someone's SP Flash Tool dump, and includes the scatter file MT6582_Android_scatter.txt plus other *.img and *.bin files.
With no way to get into my phone, I don't know how to attempt to load this image which I believe is the extraction from the SP Flash tool. I have installed CDC/ACM driver install package, Google Inc USB, Media Tek usbser from 2011 & 2007, usbvcom and Usbvcom_brom.
Any ideas? Thanks!
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Hello,
Please try posting your query here Android Q&A Forum with all relevant details, the experts there maybe able to assist you.
Regards
Vatsal,
Forum Moderator.
Dragged my JXD S7800b out of drawer, stuck it on charger and charged up okay.
However, boots up but does not get past boot animation?! So I am looking into how to recover the device please?
Used RockChip Driver Assistant v5.1.1 to setup my windows 10 machine.
RockChip Batch tool v1.8 connects when device powered up but shows pink but not green indication (with no useful error reports), so I don't appear to be able to jam firmware on that route.
Not having much fun with RockChip Factory Tool v5.3 since most images I am downloading fail to load into that, other than what appears to be the official firmware from JXD. That tool otherwise appears only for editing images but not uploading.
I bumbled onto the recovery menu. What wasn't well documented on the steps to get there, so ended up with:
1) power up while holding down power and + volume.
2) display shows an android on it's side, guts opened with a ! and the text message "No command"
3) insert USB
4) the missing bit, hit - volume to scroll into menu
So I found an adb option but haven't installed any android tools as yet on my new machine.
I burnt an SD card with etcher, to use the update from external storage option, but I am guessing the etcher wants to build a boot disk and a boot disk is not wanted? Etcher reports the image will not be bootable in any event.
Reformated SD and copied image onto it in the end but neither apply update or update rkimage "found" anything on the SD card or found the image to be invalid (despite it coming from JXD site).
So, any links to how to set up the SD card for updating the firmware would be appreciated.
I guess also I would like to know the difference between an "apply update from external storage" and "update rkimage from external storage" is what please?
Also, any links to JXD_S7800B_RileyROM_1.2.1.zip seem dead, so has anyone a live link to JXD_S7800B_RileyROM_1.2.1.zip please?
Also wik, with the usb cable in and holding down power and + volume, a few seconds in and windows reports usb device unrecognised. I have installed, uninstalled and re-installed the drivers to now avail. Not sure this is a problem? The fact I can occasionally, rarely, not often enough but just enough to irritate, get a pink but not green light up on the Patch Tool hints the software can almost, but not quiet, enough to make my teeth grind, "see" the device LOL.
Cannot get adb driver going on Windows 10 despite the driver helper having supposedly Windows 10 drivers? Whether that relates to the unrecognised device is unknown but it looks like the Drive Assistant installs usb but not adb drivers, which seem to need a manual install.
UPDATE
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Still looking for the information above BUT managed to recover the device by doing a factory reset.