Good day.
I'm from Russia, so excuse my bad english.
I bought used Blackberry 7250 (CDMA) in good condition on ebay.com. I was so happy! I installed Blackberry's USB drivers and DM 4.6 on my laptop, succesfully pluged in my BB. So I downloaded some apps and lauched apploader in DM 4.6. After that choose 4 apps (including task switcher) and click "next" button... The progress bar on screen, all right. Then DM asked me to reset my BB and i agreed with this... My BB can't start - red light on few seconds, after that in the middle of screen I see hourglasses and BB is reseting... Loop reset, WTF! I did soft reset, I took away the battery - nothing help. DM and JL_CMDER are not connecting to my BB. I don't know what can I do with device. I want to wipe it, but how?!
Please, help me!! I feel myself crazy!

Welcome to the forums!

The attached link includes steps to allow you to connect to JLCommander to wipe your device. Once it is wiped, you can reload your OS.

What to do next if Jl Cmder will not connect and wipe - BlackBerryFAQ

Oh, thank you for fast answer!
Now I want to do these steps from instruction...

Ok, I succesfully made all steps, and now my BB return to reality!! So easy it was. THANK YOU!!!
P.S. Please, close this thread.

Glad you are up and running again!

I'm sorry, but I have some questions else. What apps can you recomend for this model? E-books reader, viewer office docs etc?