Okay I managed to get everything working too. I had to do the following 
steps:

1. reset eMMC
sudo /opt/scripts/tools/developers/update_bootloader.sh 

2. flash new image provided above

3. After that the model from /opt/scripts/tools/version.sh was wrong for 
me. I'm using a BBBW but model field had just regular beaglebone black in 
it. This prevent wifi (via connman) from working. I followed another post 
about this 
(https://groups.google.com/forum/#!topic/beagleboard/_ydry5HYVNQ) which 
suggested to reset  eeprom:

GND TP1 then run as root: 

dd 
if=/opt/scripts/device/bone/bbbw-eeprom.dump 
of=/sys/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0050/eeprom 

reboot.

Everything works fine now!

Thanks Robert and Hugh

On Saturday, May 25, 2019 at 2:37:07 PM UTC-7, Hugh Frater wrote:
>
> Robert, is it ok to use this image in production or should I use the 
> current stretch IOT image and flash the eMMC to overwrite this old 
> bootloader?
>
> On Saturday, 25 May 2019 20:55:58 UTC+1, RobertCNelson wrote:
>>
>> > This is what I think is relevant from my uBoot console: 
>> > 
>> > U-Boot SPL 2017.03-00002-gd12b1519b4 (Mar 14 2017 - 10:28:26) 
>> > Trying to boot from MMC2 
>> > U-Boot 2017.03-00002-gd12b1519b4 (Mar 14 2017 - 10:28:26 -0500), Build: 
>> jenkins- 
>> > github_Bootloader-Builder-532 
>>
>> There you go!! Would you please give me a dd copy of the first 100Mb 
>> of the eMMC partition.. Such that i can use it to update the 
>> version.sh script, to detect this bad version... 
>>
>> Regards, 
>>
>> -- 
>> Robert Nelson 
>> https://rcn-ee.com/ 
>>
>

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