Eproms and stuff ================ First of all you'll have to burn a rom to install into the phone. Your best bet is to get someone in your local tec's electronics department to do this for you, though you can build a burner for about 20 ukp. The EPROM in these phones is a 27C256. Be sure and burn the correct rom for your software version... two are included (because these are the only two phones I have ever got my hands on), one for the Novatel 1320 (CA08) and the other for Novatel 9300 (AA04). The rom is usually a ceramic chip with 28 pins, and a label on top declaring the software revision. Installation ============ Loosen the 4 screws that hold the phone together and open up from the connector end like a clamshell. The rom is the chip in the socket :- nvt1320 ptr9300 ________ ________ | x | | | | | | | | | | | | | | x| -P------- -P------- P = Power connector / Lead in x = ROM Take out the old rom and put your new one in the same way. Check all of the pins are in and not bent/broken/shorting etc... Usage ===== Power up your phone... no different (hopefully)... Now lock your phone (FCN 1).... Now key #259.... CNF 1320 or CNF 9300 you should see something like.... REV CA08 REV AA04 now press the volume up button... ESN 2AE10120 The keys on the keyboard have now been re-defined into a hex keypad. SND = store ESN into NAM CE = reload ESN from NAM (i.e. you mis-keyed the new ESN and want to start again) 0-9 = As you would expect H/F = A FCN = B RCL = C CALLS = D MNU = E ALPH = F ESN's are in Hex form. If yours is in decimal (xx/xx/xx/xxxxx) form you'll need to convert it. Basically type in the new ESN in hex and press send. That's it. Simple eh? You will also need to program in the new MIN and AID, this is done by simply using the vol up/down keys to select the appropriate menu and then typing in the relevant stuff and pressing SND to store. When you've finished press END to reboot the phone and use the MNU key + 2 pushes of volume down to verify your new ESN. Oh btw.. if you lock the phone and press #83* you get into the SerViCe menu... With this you have a nice in car call scanner, but I'll leave that as an exersice for the reader (its quite simple to work out!) CmoS