How do I stop my calculator from perpetually warmstarting?
After installing a library, the HP49 sometimes warmstarts over and over again. If this happens after a library is installed in port 0 or 1, one might clear the memory to restore the calculator to normal operation. However, if the program is installed in port 2 (flash), there is no easy way to do this. For this reason, HP set up the HP49 to ignore all libraries if the backspace key is held down while warmstarting. Holding down the backspace key usually allows the calculator to be started normally, so the offending library can be easily removed. This probably is generally caused by installing a corrupted library, either because it was corrupted in transfer, was not written properly, or was written for a calculator other than the 49.
