My samsung bluetooth won't work with my tmobile mytouch slide

Go to settings and scroll down to about phone. u might see upgrade. Mine is samsung galaxy and that's how i do it. Hope this helps

I have the same model but 4g. I often notice the same problem, but once i step out of the full sun/bright lights, i notice that it is infact dimly lit. This can be adjusted by opening settings > display > brightness > turn off automatic brightness and set the level to at least %50.

now, if your screen is literally too dim to see, try this : Press the power button quickly, now unlock the screen by sliding your finger from the bottom center up to the top center and releasing, all in one fluid motion. This is the default screen-lock gesture and the brightness, if this is indeed the issue, should go up one notch upon unlock. From there, follow the above procedure to turn up the brightness.

hope that helps

http://www.amazon.com/3600mAh-EXTENDED-BATTERY-TMOBILE-MYTOUCH/dp/B0046FO3TO/ref=sr_1_1?s=wireless&ie=UTF8&qid=1346817922&sr=1-1&keywords=Mugen+Power+3200mAh+Extended+Battery+for+T-Mobile+MyTouch+3G+Slide

if random work go to touch celibration - done.
if fully not work change PDA.