BB 8800 Battery or Software

[Suad]

Hello Guys

Well, I´ve got a BB 8800 from a friend, he asked me whether I can fix it or not. I told him that I can try. The problem is that the BB won´t boot. When I charge it, a cancelled battery symbol is displayed. So I bought a new battery, but I still have the same Problem. I opened the case and cleaned everything inside, but still the problem is not fixed. So I wanted to install an Update, but again I failed. I´m living in Germany so I can´t give you exact information, but the Updater loads the FW-files, proceeds but always stucks with "Neu mit JVM verbinden", I think it should mean: "Creating new JVM connection" or something like that. The Desktop Software of BB shows the same error. It stucks and says that the BB couldn´t be connected or that it losed connection or something like that. I also can´t wipe the BB. When I try to wipe the Phone there comes a message ("type "backberry" if you really want to wipe your phone") and after that it immediately returns to the main menu of the program. I´ve written in several other forums, but the users couldn´t help me or I didn´t get any answers. I hope you can help me fix the problem. I´m trying to repair the phone for a week, but still unsuccessful.

PS: Sorry for my bad English

Many greetings
Suad

[Deathcommand]

Do you know what BBSAK is?
It can wipe the phone and load the OS.
Have you made sure the battery contacts are fit snug?

[Suad]

The battery fits. But I´ve never heard of BBSAK. I´ve used Jl_Cmnd. Can you maybe give me some links, please?

EDIT: I´ve found and tried BBSAK now, but still no results. I can´t connect my BB, it only shows the message "No device detected, push OK to continue"

EDIT2: I also recognized that my Desktop App also cannot connect to the Phone, though the general phone information is shown on the main screen...

[Suad]

Nobody, who can help me?