Database Users

Won't boot with SD card in

Recently, after trying to update to the latest version of Google Maps, my MT3G froze - and after reset I found out that it refuses to boot when sd card is in it. As soon as I remove the card - it boots up smoothly.
Tried formatting the card, did wipe/factory reset - with 0 effect. Still stuck on bootloader screen. I'm running CyanogenMOD 4.2.6.
Is there any solution to this mess?

I had the same problem.
SD card was broken, I bought a new one and all works.

Was it completely broken? I mean, mine is recognized by the cardreader and fully readable/writable.
It is even recognized by the phone - only in case it's inserted after the device boots up.

Sd card not mounting need help

I flashed a rom the other day and a couple minutes after flashing the rom kept rebooting not goin past the Mytouch splash screen. If the sdcard is in it'll reboot about 3 or 4 times and finally boot up or just removing the card it'll boot up normally. I unrooted to see if that was the problem. Same result I've tried different cards reformatting and everything and the cards work on other devices. So I'm assuming its the phone. Is there a way to fix or am I just stuck with a phone that can never be rooted again ?
Also when I go into recovery I get the" E: can't open /cache/recovery/command"

[Q] OTA Update and Reboot Loop- Attempts to install update, fails, and repeats

Ever since receiving an OTA update a few days ago, my phone was never able to successfully reboot again. Instead, it does exactly this when I turn it on: Samsung logo appears when booting, then the At&t logo with the word "installing..." or "updating..." along with a loading bar at the bottom appears. The loading bar reaches 100%, but then it will say "update failed", and it reboots and the same process happens again. I've let the phone run on it's own for several ours to see if it'll ever snap out of the loop, but it just stays in the same never-ending cycle of constant rebooting and updating. My phone wasn't rooted and worked perfectly fine before the update, so I suspect something went wrong while it was updating. I tried pressing the home, volume, and power buttons in attempt to initiate a recovery boot and do a factory-reset, but nothing happens. And I've tried replacing the battery, SIM card, and micro SD card, but there's still no change. I still am, however, able to set it in ODIN mode, but I'm not sure what to do since I'm not techie/literate. Please help, I don't know how to get my phone properly working again.

[Q] Continuous, consecutive reboots.,doesn't happen in safe mode any fix?

Hi!
I've got an N910C with Lollipop ( I did a factory reset after upgrading and cleared cache) . It randomly decides to reboot, and will keep doing so. After a reboot, I can use it for about a minute till it reboots again. Booting into safe mode fixes it temporarily and it stays fine after safe mode, a regular reboot doesn't help.
I'd prefer not to factory reset, and would like to find the cause (app/sd card? Sandisk 8GB btw)
Cheers, thanks!

My N910A does the same thing except the times it reboots can vary from a minute to an hour later, but it reboots a lot.
Doesn't happen in safe mode only regular boot mode. That tells me it's either an app or SD card.
I swapped SD cards and same issue. I wish there was a log I could look at to see what app is running at the time of reboot, but haven't found any logs that have that info.
I'm stuck and running out of ideas.

Try factory reset again man and remove Sd and try to boot it
You can identify where the problem come from

Note 4 sudden death,restarting.

I reverted to stock firmware,even though it restarts freezes,and screen wont respond at all,even after downloading updates it wont restart it just dies and sleeps,sometimes when i lock the device it wont turn on again,sometimes it restarts.
when i pull battery and starts device it sometimes boots to odin : failed to boot mode , and some times mmc :read failed,after repeated attempts it starts again, and this cycle continues once again,what is the cause? i tried taking out sim and memory card still issue persists,any help is highly appreciated.

Bro Try odin to flash 5.0 lolipop
marshmallow wont working properly on note 4
6.0 have many issue like freez imei null rebooy etc

Maheshzx said:
I reverted to stock firmware,even though it restarts freezes,and screen wont respond at all,even after downloading updates it wont restart it just dies and sleeps,sometimes when i lock the device it wont turn on again,sometimes it restarts.
when i pull battery and starts device it sometimes boots to odin : failed to boot mode , and some times mmc :read failed,after repeated attempts it starts again, and this cycle continues once again,what is the cause? i tried taking out sim and memory card still issue persists,any help is highly appreciated.
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http://forum.xda-developers.com/note-4/help/note-4-issues-t3453048