# bootloader damaged **URL:** \ **Category:** NET+OS\ **Created:** [November 16, 2010, 1:40pm UTC](https://forums.digi.com/t/bootloader-damaged/5245 "2010-11-16T13:40:24Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Student85](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/32.png) [@Student85](https://forums.digi.com/u/Student85)\ **Post date:** [November 16, 2010, 1:40pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/1 "2010-11-16T13:40:24Z")
hi, i have damaged the boootloader/bsp from my connectcore Wi-9P 9215(I have erased the flash). I use Digi ESP for NET+OS 7.4.2. Has somebody this problem before and how did you solve this? This is SEGGER J-LinkGDB Server V3.88 log: ERROR: Could not find supported CPU core on JTAG chain J-Link connected Firmware: J-Link ARM V8 compiled Oct 7 2010 10:56:54 Hardware: V8.00 OEM: DIGI-LINK Feature(s): GDB ERROR: Could not find supported CPU core on JTAG chain ERROR: Could not connect to target. Resetting target and trying again to connect… WARNING: Received 0 as core Id. WARNING: Received 0 as core Id. ERROR: Could not find supported CPU core on JTAG chain Bad JTAG communication: Write to IR: Expected 0x1, got 0x3 (TAP Command : 2) @ Off 0x5. ERROR: Could not connect to target. ---
**Author:** ![bobthomas13](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@bobthomas13](https://forums.digi.com/u/bobthomas13)\ **Post date:** [November 16, 2010, 1:47pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/2 "2010-11-16T13:47:26Z")
Have you tried Recovering the device. Digi ESP -\> Help -\>Help Contents -\> Digi ESP For NET+OS User Guide -\> Tasks -\> Recovering a NET+OS Device ---
**Author:** ![Student85](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/32.png) [@Student85](https://forums.digi.com/u/Student85)\ **Post date:** [November 16, 2010, 2:20pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/3 "2010-11-16T14:20:45Z")
Thank you for reply. Im trying to do it now but how i can disable the flash. I cant find any information about it in the hardware reference guide. ---
**Author:** ![bobthomas13](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@bobthomas13](https://forums.digi.com/u/bobthomas13)\ **Post date:** [November 16, 2010, 2:29pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/4 "2010-11-16T14:29:33Z")
How you have erased the flash?? you dont need to disable the flash for recovery. ---
**Author:** ![Student85](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/32.png) [@Student85](https://forums.digi.com/u/Student85)\ **Post date:** [November 16, 2010, 2:53pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/5 "2010-11-16T14:53:13Z")
I have erased the flash with SEGGER J-Flash ARM. The Program process was aborted during programing. ---
**Author:** ![bobthomas13](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@bobthomas13](https://forums.digi.com/u/bobthomas13)\ **Post date:** [November 16, 2010, 3:05pm UTC](https://forums.digi.com/t/bootloader-damaged/5245/6 "2010-11-16T15:05:10Z")
You should have successfully recovered the device by this time