[Samsung Galaxy Player 4.0, 5.0] 2Cooley:
My US Galaxy Player 5:

Model: YP-G70

ROM: Eryigit Rom 3.0 USA

Firmware: 2.3.6 Gingerbread

Launcher: ADW

Rooted: Yes

Sorry if this question has already been answered elsewhere, but I have scoured the forums and have seen no other people with an experience similar to mine.

I bought a refurbished galaxy player 5.0 US version on amazon about 6 months ago. Since about a week or two after I bought it, I have had nothing but problems with it:

-The player will randomly say the SD card has become unmounted (never on for more than 2 hours without the SD card being unmounted,) and the only way for it to recognize the SD card is a reboot

-The player will freeze when I am trying to open an app, and I am forced to hard reboot

-Occasionally starts randomly playing songs at full volume through the speakers, even though the player is on silent and is not being used (and there is no alarm on.)

I was originally using the stock ROM, and these problems gradually became worse and worse. After the freezing became so bad that I was literally forced to reboot (sometimes multiple times) any time I wanted to switch between apps, I decided to try using Cyanogen instead of Stock Gingerbread.

I loaded version CM7.2.0, and all of these problems completely disappeared (except for the SD card unmounting problem, but even this was way less frequent.) I used CM7 for a few weeks, and ran into the problem where flight mode was stuck on and I couldn't use my WIFI.

I tried to factory reset a few times, but still couldn't get it to work, so I tried flashing the Stock Gingerbread 2.3.6 back on, but got the boot loop error. I ignored the boot loop and used CWM to put CM7.2 back onto my player. I eventually got the WIFI to work through a third party app, and was able to use my player with no errors for about a week, until it went completely haywire and started crashing any time I tried to use any apps that WERE NOT third party apps. Also, none of the features like WIFI, bluetooth, camera, etc. were working. My app I use to study Chinese was still working, so I waited a few weeks before I tried to recover the player in case doing so made it unusable. I tried a hard reset, and this time I got a boot loop for Cyanogen as well. After a few weeks and about 40+ hours of flashing different ROMs onto the player and using different strategies to do so, I finally got past the a boot loop using Eryigit Rom 3.0 USA.

I was very happy to have use of my player back, but only a few days after flashing the stock ROM, the problems that plagued my player initially have returned.

Sorry for the novel, but I wanted to make sure I included a detailed history of my problems in case any lend some insight in to what is wrong with the device. Does anyone have any advice on what to do moving forward to fix any of these problems? Thanks in advanced.

Also, this probably isn't related, but I would like to note that my player stayed on without being charged for 10 straight days (with intermittent use over the period) when I had CM7 flashed and it was messed up. Wanted to point that out in case it signified that some specific critical process was not running, which led to buggy usage, but super long battery life.