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audiovision
Member
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Dec 13, 2013

ESP-88 Firmware Update Failure

While updating the ESP-88 to firmware version 4.0 the power on site went off. The ESP-88 is not responding at all. No network connection possible.
Please let me know what to do next.

Regards
Pierre
AVN
5 REPLIES 5
brian_kam@bose.com
Participant
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Oct 1, 2008

Re: ESP-88 Firmware Update Failure

Hello Pierre,

I'm pretty sure you've bricked the ESP-88.

It is possible to restore the firmware through the serial port. There's an application and instructions that will help you do that.

Download here

This version will upload the 2.2 version of the firmware. From there you should be able to get the 4.0 update to work.
audiovision
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Dec 13, 2013

Re: ESP-88 Firmware Update Failure

Hi Brian,

Thank you problem solved.

Regards
Pierre
sunny_li
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Jun 26, 2011

Re: ESP-88 Firmware Update Failure

Hi Brian,

Does this SerialUpdateProgram apply to ESP880/1240/4120?

Thank you!
arno-at-bose
Moderator - Retired
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Oct 27, 2017

Re: ESP-88 Firmware Update Failure

Hi Sunny,

It doesn't seems to work with the ESP 1U
sunny_li
Contributor
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Jun 26, 2011

Re: ESP-88 Firmware Update Failure

Do we have the similar program for ESP 1U?

Thank you.