Read Device EEPROM Failed

Find answers to common installation issues with the WebLink Updater.
Post Reply
New User
Posts: 1
Joined: Sun Jul 16, 2017 4:21 pm

Read Device EEPROM Failed

Post by northernpenguin » Sun Jul 16, 2017 4:27 pm


I'm trying to flash a Maestro ADS-MRR for a JVC KW-v830BT and have been having a devil of a time. When I can get the device to detect at all it will have a solid green light but then when I try to send firmware it just errors out with "Read Device EEPROM failed". It appears to have no firmware when I look at the summary.

Reset device with pressing program button for 10 seconds appears to have no effect. Unit just slow blinks a red light when I do that.

Starting to wonder if I have a lemon here.

User avatar
Dara DeGrand
ADS Team
Posts: 5970
Joined: Mon Dec 02, 2013 1:34 pm

Re: Read Device EEPROM Failed

Post by Dara DeGrand » Mon Jul 17, 2017 9:14 am

A reset will not work unless it has been flashed- 1 slow red blink means that there is no firmware on the module.

That EEPROM message means that the computer/website is unable to read the RR. Do you have another PC to try, just to rule out a compatibility issue with the computer? (This is rare, but sometimes switching to a different PC gets rid of the issue.)

If not, It definitely could be a defective module. It's rare, but it does happen sometimes. If that's the case, you should be able to exchange the device under warranty from the dealer where you purchased it.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

Post Reply

Return to “Weblink Updater”