Again, if you have any specific error questions, leave them in the comments. We have another error post set to go tomorrow, and will be taking specific issues on Thursday and Friday. In the past we’ve gone over a number of issues relating to BlackBerry error codes. In a few instances we’ve gone over specific advice for specific errors. There are a few general principles, though, that can help you plow through a problem and get your Berry back up and running. Previously, we went over deleting the vendor.xml file before reinstalling an OS via AppLoader. Further problems will arise, though, if your computer won’t connect to your BlackBerry. That requires a bit more complex fix. Here’s a quick run-through of the steps you’ll need to take in order to recover your OS. 
First, you’ll have to perform an old fashioned battery pull. Do not, however, reinsert the battery. Leave it out until the very end. Once you’ve removed the battery it’s time to connect your Berry to your computer via USB. At the same time, run Desktop Manager. Once you’ve opened Desktop Manager, go to Options and select Connection Options. From that menu select USB PIN under connection type. After you’ve chosen that connection type, run Application Loader and select the OS you want to install. That should be the one you downloaded from your carrier’s website (and from which you removed the vendor.xml file). Here’s an important step. Once you click through to the Finish screen, select Advanced instead. Make sure both boxes are checked, and then start clicking through. When you’re prompted to automatically back up the device, choose to do not automatically back up the device. Click finish, and the reinstallation process will begin. During this process, reinsert the battery. That should get the Berry to reinitialize. From here you should be back up and running. If not, try try again. If it continues not to work, well, we’ll go over a possible solution tomorrow.
7 comments… read them below or add one
i still can not connect my blackberry i did the first step but would not give me an options for the usb pin. If you know any other way i would greatly appreciate the advise. Thank you
_kristen
I can connect to my laptop but with my newest (now close to a year) I cannot access BB DeskTop Manager. It shows loaded on my programs on my lapttop but I cannot open. I’ve tried uninstalling and downloaded both current and old programs but ‘nothing’. I’m now very out of synch with my contacts and I’m at risk as I use Desktop Manager to backup my BB. Any suggestions?
my bb dont connect to the computer without the battery it just cant recognise it so i cant do the first step when i do put the battery in and when gets to the end of the update and your suppose to click finish it reboots at connecting to rom part
my blackberry 9000 wont turn on and my loptop wont reconiz it ether if i leave the battry in and connect it via usb the red light comes on for a few sec then coms off nothing happens how can i fix it it wont even charge i use the charger the red light coms on a few sec then it trys to boot up then a blank white screen and it well stay lik that for ever until i unpluge it help!!!!
my bb screen froze, i cant use it even if i restart it several times… the keypad is not working and signal is not working as well. even the desktop manager cannot connect on it. what am i suppose to do now?
I had just got a bb off the net and it had a password so i went on here to wipe the bb and now it just loads and goes to a white screen with a red light what can i do?
hey, i own a blackberry bold 9000, so quiet a few problems with my phone. First the operating system is gone. Clearly I need to reload it. Now unfortunately i own a mac which you cannot load old software on to because it is in an exe. file. Second my blackberry wont connect to desktop manager. it will recognize it but wont connect it. A message pops up and say blackberry will not connect to desktop manager it gives me the option to repair retry or cancel. I have NO idea what to do please help me.