Question about HP iPAQ H3835 Pocket PC
I ran into the same issue with a H4150. Pull the main battery and let it sit without the battery for a while; a few seconds is not long enough. I let it sit for about two minutes and that was long enough on each of the four times I needed to recover from a failed ROM upgrade last night. This reset the H4150 and it then initialized like it was just out of the box; all data and settings were reset to original. Some troubleshooting procedures indicate you should not use a USB hub for this process. That did not work for me-the ROM upgrade still breaks the connection just after getting started. But at least pulling the battery got the iPAQ back to a useable condition. My next test will be to try it from an old PC with Windows 98 and USB 1.1 or 1.0. Maybe the brief disconnection is normal and a fast PC with a modern OS may not be as forgiving to brief upsets. Just as the ROM update really begins (after all the handshaking), the iPAQ briefly drops the connection and that's when the update fails, it just takes a little longer for the software to say 'hey-I've lost communication with the iPAQ...'
Posted on Jan 27, 2011
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Posted on Jan 02, 2017
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