Google Nexus 5 :: Cannot Mount /cache (No External Storage Available)
Jul 27, 2015
Device Nexus 5(Android L 5.1.1)
My colleague was trying to unlock bootloader "fastboot oem unlock" and after that it stuck on erasing userdata for around 2 hours. Then he restart device now while flashing it says "cannot mount /cache"and few other errors.
I tried flashing Stock 5.0/5.1 nothing works (Stuck at loading screen). Then i tried Android 4.4.4 and it worded.
Now at this point in recovery mode it still says "cannot mount /cache" and few other errors. I cannot use gallery/camera/playstore. When i open gallery it says "No external Storage available".
From last week my phone got stucked at boot(Google logo). I went to recovery mode-twrp and clicked factory reset..it failed saying that unable to mount storage.
And I also tried nexus tool kit, To flash lollipop stock rom, It say flash write failure..
And tried fastboot flash all.bat method also but not works...
Ever since I updated to 4.4.2 and re-rooted I haven't not been able to mount my phone via USB to my computer. I'd just like to transfer music files to my phone. I tried using ES File Explorer with dropbox and it's been hit or miss. Is there any other way I can transfer music to my phone? Or maybe any reason why the USB mounting wouldn't be working?
I now for the past hour am trying to wipe the partition cache but when I get to the last step where it shows the no command instead of it bringing me to the recovery menu it just reboots every time.
To wipe the cache partition, follow these steps:
Turn off the device. Press and hold the Volume Up and the Volume Down and Power keys at the same time for about 10 seconds. An image of an Android lying on its back will appear. Press the Volume Down key twice until "Recovery mode" appears on the screen. Press the Power key to restart in "Recovery mode." An image of an Android with a red triangle will appear. While holding down the Power key, tap the Volume Up key. The Android System Recovery screen will appear. Release all keys. (But it does not appear it just reboots the device and brings me back to the lock screen every time) Use the Volume keys to scroll to wipe data cache partition and press the Power key to select. The phone will restart.
Just a question for everyone that occasionally wipes the cache partition from recovery like I do. I'm on my 2nd replacement and after I set it all up I wiped the cache partition but for some reason it takes longer than usual for the process to finish. Usually it would be like 2 seconds where now it takes around 35-40 seconds to complete. How long does it usually take you to clear your cache?
One fine day, my nexus 5 started hanging up while booting. After the google Logo, the Marshmallow animation would show up and then it would hang and power off. I have no problem in doing a factory reset/wipe of my phone. But the only thing i want to save is my contacts. I have tried erasing and re-flashing system, cache, boot and boot-loader. Using ADB, flashing the cache always fails........
However, i have not touched userdata as i think it would affect the contacts too. I have even tried using different custom recoveries such as CWM, TWRP and even Philz Touch to use adb to pull my SD card files to my PC. Even flashing the system is not working now.... (atleast that's what my results were) .
Philz touch error messages....
E: Can't mount /cache/recovery/log E: Can't open /cache/recovery/log E: Can't mount /cache/recovery/last_log E: Can't open /cache/recovery/last_log E: Can't mount /cache/recovery/last_install E: Can't open /cache/recovery/last_install
I used to get the occasional reboot but on Thursday maybe from any update my phone was rebooting every 20 minutes even after clearing the cache. After Thursday it stopped rebooting and hasn't ever since.
The only other annoyance I received was camera cannot connect when I tried opening the camera app but was resolved with a reboot.
Nexus 5 taken a while to wipe cache partition? It takes a good minute or 2 on the nexus 5 but on the nexus 4 it takes 2 seconds. Both are running Android 4.4.2 the nexus 5 and the nexus 4.
it takes about 5 - 10 minutes to perform a wipe from Recovery, where in Lollipop and before, it was a few seconds. A couple of websites have corroborated this.what's changed in 6.0 that a cache wipe takes so long? I'm on an unrooted N5 and performed a clean factory flash (and re-locked the bootloader).
Code: mkfs -t ext4 /dev/[device] to Code: rm -rf /cache/*
Or something, I mean, even formatting a heavily encrypted partition shouldn't take that long (especially one as small as /cache).
Yessterday my Nexus 5 battery drained out and instead of shutting down, it tried to restart and got stuck in the startup sequence with the dots floating on the screen. I went into bootloader mode and then into recovery mode where I saw the cache errors.
E: failed to mount /cache (invalid argument)
I started to read a bit more on fixing the issue and the first solution was to flash it with the stock cache.img. However, when I unlock the OEM using fastboot oem unlock and reboot the boot-loader, it is going back to the locked state. I'm not sure if I'm going wrong somewhere but I haven't been able to flash my phone yet with the stock rom.
Whenever I plug my Nexus 5 into a wall charger, it normally charges at an AC rate. However, I've found with external batteries that it charges at a USB rate even if it's plugged into a 2.1A port. I find it odd because my Nexus 4 seems to charge at an AC rate when plugged into these batteries.
Rooted, kitkat 4.4.4. I like to backup my entire nexus 5 to a large external sdcard using ES file explorer and stickmount pro. After an initial copy of all files it would be nice if I could copy "only changed or new files".
The 32gb sdcard is formatted fat32 and although I can copy files from the phone to it my backup failed when I tried to copy large files. I get an error message saying that there isn't enough space which is nonsense because the external sdcard is almost empty! Not sure why.
I am attempting to add music to my phone from my computer's music library. When I plug in my Android Nexus 5, I keep getting a message popping up on my computer that says: "Can't access device storage: if your devices screen is locked, disconnect the USB cable, unlock your screen, and then reconnect the USB cable." I have tried this answer without success many times. How do I access and update my music collection from my laptop?? (I have a 2008 Apple MacBook Pro). Is there another way to update my music via internet, or any other method that does not require direct connection?
After upgrading to marshmallow, the internal storage is no longer accessible from my computer. It only works when on twrp recovery mode. Already turned off USB debugging, changed MTP and back, reinstalled the latest ADB drivers, removed the ADB drivers completely and no cigar.
I was using the camera to document something I am doing. I took a few pictures and then hit the power button to shut off the screen, When I later hit the power buttom to wake my wifi xoom, the xoom awoke back into the camera app, however, the screen for the picture was black. I hit the "back" button and it illuminated blue to indicate that I had hit it but it remained blue. It was stuck. I hit "home" and it gave me a message to force close the camera or wait. I force closed it and attempted to restart the camera app. It wouldn't restart so I rebooted the xoom.Now, the camera app starts up and shows a picture, however, I get the subject message "Mount USB Storage Before Using the Camera"
Are those two directories accessible without root? Yesterday I noticed that in any file manager both of those seem to be empty or in the FX File Explorer it was "Access was denied". I'm on stock 6.0
So as the subject says, somehow my internal storage moved to a different location in my phone. It moved from storage/emulated/0 to data/media/0 somehow. I don't know how but now my apps and file managers are unable to access my internal storage and I am unable to download anything from my browser. My nexus 5 is rooted with Android 6.0 and has experimentalx kernel with xposed. Other than that, my nexus 5 is stock. I tried using root browser and solid browser to move my internal storage back to the correct place but that just gives me an error. I also tried using Android commander to move my storage using my pc but it's giving me permission denied. So I don't know what to do.
When i click on setting there is a storage & USB atab under device which I click on. When I do this, no internal storage is available in order for me to click on MTP. When I click on the three dots it says Help and Feedback. The phone is not locked. I am tethering my phone to my computer.
My goal is to transfer pictures from my phone to my computer via tethering but I cannot locate the internal storage in order to click on MTP.
So for weeks I've been dealing with a low storage space issue on my N5. I've been hovering at about 500MB of free space. I delete some photos, some cached data, etc., and get some more breathing room for awhile. (An aside: there's a specific app that is using way too much data storage and the amount keeps going up and up; I'm trying to resolve that issue without deleting the app.)
Occasionally I've received the system alerts about no new voicemail downloads, possibly no new message downloads, etc. I'll clear some space and those alerts go away and everything continues to seem to work fine.
This morning I got the low storage space alert(s), deleted some stuff, eventually got a handful of new email notifications, but for the past 6+ hours I've received no new txt messages (I use Messenger app for sms). I currently have 553MB of free space, I'm getting email notifications, and txt messages I send out are successfully received.
How do I resolve this? My N5 is unrooted. I've tried leaving it off for awhile, and have obviously rebooted it. Could this just be some network issue? (I'm on tmobile.)
(btw, I somewhat recently backed up and deleted a bunch of sms/mms messages, so there's only about 8000 currently on my phone, taking up about 165MB of space.)
I went to transfer some files from my PC the other day for the first time on my nexus, and the drivers installed fine. When I searched for my device under 'my PC' it wouldn't appear. I tried switching between media and storage, disconnecting and reconnecting, switching USB ports. Nothing worked.
I'm facing this problem since the first M Preview, I recently updated to the preview 2 hoping that problem wold be fixed but it wasn't.
The default mass storage device label shows Unknown instead the device's name (Nexus 5), I'm not facing this issue on my Nexus 4 running 5.1.1 stock so I don't think it's an adb driver issue. I've tried to update the drivers to the latest on Google page, but no success.
I have installed cataclysm rom after doing the full wipe and it booted up without problems but then I deleted internal storage in twrp and it didn't boot anymore. I have tried reinstalling it but when it started there was no status bar and no soft keys.
Rooted my N5 yesterday and it was working fine. Then today, I was trying to flash the Camera app from Jinshu when I got stuck on the dancing circles screen... went back into TWRP recovery and, I think, accidentally flashed the entire internal storage...
I can still get into TWRP, but when I click reboot > system , I get a warning message "No OS Installed! Are you sure you wish to reboot?"
I am using a Mac and have the SDK etc. installed, but I don't even see the device as a USB device in order to try and figure out how to get the system files back on the device.
