If you have secured a "hot" BlackBerry 9900 autoloader file, you are holding the defibrillator paddles for your device. The process is not for the faint of heart, but for those willing to proceed, it looks something like this:
This process is destructive; all photos, contacts, and messages will be erased. blackberry+9900+autoloader+flash+file+hot
: Use a high-quality data cable to prevent connection drops during the flash. If you have secured a "hot" BlackBerry 9900
If the autoloader doesn't detect the phone, try using a different USB port or cable. If the autoloader doesn't detect the phone, try
Use BlackBerry Desktop Software if possible; autoloaders wipe everything.
Your safest bet is going to CrackBerry's 9900 forum → use search for "autoloader 9900 507 error fixed" – you'll find active Mega.nz links posted within the last 2–3 years. Avoid anything requiring a "password" or "payment."