## [DM15L] Unresponsive after update attempt

This is the place to discuss the usage of DM1x/DM41 machines and to share any tips & tricks you may have stumbled across.

If discussing a specific model, please ensure that you prefix topic subjects with the model number this way:

[DM41] How to change the number of program steps available
elgarak
Posts: 21
Joined: Thu Mar 25, 2021 1:47 pm

### [DM15L] Unresponsive after update attempt

I've tried updating my HP15L (after having successfully done it with my DM41L). It broke off with an error message (which I foolishly failed to record). No beep upon pressing reset.

Now the calc is unresponsive. Doesn't come on. Display stays clear. Tried changing the battery. Battery is full.

elgarak
Posts: 21
Joined: Thu Mar 25, 2021 1:47 pm

### Re: [DM15L] Unresponsive after update attempt

Was able to recover the response after I started the sync and pressed reset on the calc:

Code: Select all

Read bootcode version: 2
7
Read part ID: LPC1115.../303, 64 kiB FLASH / 8 kiB SRAM (0x00050080)
Will start programming at Sector 1 if possible, and conclude with Sector 0 to ensure that checksum is written last.
Erasing sector 0 first, to invalidate checksum. Wrong answer on Erase-Command