EUREKA! Solution to "Error 628" and "Error 692" when using BlackBerry as Modem
How To Fix Common BlackBerry Modem Connection Errors
This is an appendix to the BlackBerry FAQ,
"Use BlackBerry As Modem For Laptop"
Fixing Error 692
HOW DOES THIS HAPPEN?
This is because the computer doesn't see the BlackBerry. Essentially, this is the same error you would get if your BlackBerry is completly disconnected. If this is the case, make sure you have fully set up your BlackBerry modem using the FAQ entry "Use BlackBerry As Modem For Laptop".
These steps are steps are easiest if you already hvae BlackBerry OS 4.2 and BlackBerry Desktop 4.2 ... If your BlackBerry is not running the latest, please upgrade to these versions. Also, please do not send private messages to the moderators (including myself) asking me questions -- it is best to post your questions publicly because the Inboxes of us volunteer moderators are already overflowing...
Fixing Error 628
HOW DOES THIS HAPPEN?
* You manually added the BlackBerry modem driver; AND
* You consistently get an Error 628
You consistently got an "Error 628" trying to connect to the Internet when using BlackBerry as a modem for the laptop. (I came across a laptop where this happens)
Go to Control Panel -> Phone and Modem and Remove the modem. Re-add the modem by clicking on Add. You MUST select the "Standard 33600 bps Modem" (correct) INSTEAD OF "Standard 56000 bps Modem" (wrong). Click Next. You will be asked for the ports to add this modem to. Add this modem to all COM ports that the RIM Virtual Serial Port is on. If you are not sure of which COM ports the RIM Virtual Serial Ports are, go to Control Panel -> System -> Hardware -> Device Manager -> Ports (COM & LPT) ... This will tell you which COM ports your RIM Virtual Modem is on.
TECHNICAL EXPLANATION: WHY DOES THIS HAPPEN?
When a modem is added manually instead of automatically, most people try to choose the fastest possible modem. However, the "Standard 56000 bps Modem" entry transmits incorrect AT commands to the BlackBerry, which returns an "ERROR" instead of an "OK". This can be observed by watching the output of the logfile of the "View Log" button in Control Panel -> Phone and Modem -> Modems -> (select your BlackBerry modem) -> Diagnostics -> View Log. Viewing the log right after you try to connect to the Internet, reveals very technical details, right down to the individual AT commands transmitted to the modem. This revealed the exact cause of Error 628 which used some more-proprietary AT commands used by the "Standard 56000 bps Modem", which were not supported by the BlackBerry.
IS THIS MODEM SLOWER?
Actually, "Standard 300 bps Modem" all the way through to "Standard 33600 bps Modem", all behave the same speed using the BlackBerry, so it doesn't matter -- the speed is always the same.
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