10-17-2018 12:03 PM - edited 10-17-2018 12:04 PM
so its functional??? allowing all the steps needed for model and serial number and passing all the tests and actually shutting down and rebooting correctly?
10-17-2018 12:23 PM
Yep - the updated RMA Shim works great, as far as I can tell!
I still can't test any of our devices that are randomly shutting down, but that's an issue on our end - they've all got developer mode disabled (even though they're supposed to have it enabled when they're in our OU in G-Suite). Very glad to see that the Shim is working properly. Hopefully it'll be a help to the others having random shutdowns / other systemboard issues on these devices.
10-18-2018 10:04 AM
Ok well here is my procedure that works...
It might not be 100% correct on the way it is "supposed to be done" but the shim still has issues . It is better but still fails at points..With zero help from Lenovo
So here you all go......
Remove battery connection to board
Then plug unit in
Factory image will start
Interrupt by pushing
Ctl alt f2
Log in as root
Then type enable_dev_usb_boot
Push ctl u Load shim
Type I as in the letter i
Let shim load completely
Run through model and serial input as well as region
Then run as far as "reboot" sequence test then
By turning off machine push power 5 seconds
Pressing esc +refresh while holding down then power
Then load image flash drive
Remove flash drive
Let it boot
Run terminal ctl alt arrow right
Type sudo su
Then cd /
turn on unit will say
was last loaded in development mode
rebooting itself then all is good
10-18-2018 10:47 AM - edited 10-19-2018 12:25 PM
10-18-2018 01:17 PM
If you're not a Lenovo Authorized Service Center, then you'll have to just send the devices in. The larger the pool of faulty devices they have to test with, the better chance they'll find the root cause and supply a fix to users.
I've run the factory test software on five devices since the updated RMA Shim became available to download yesterday. So far, three devices had multiple reboots / failures during the first few tests (where it sets VPD info, updates firmware, etc), and had one or no issues during other tests. The single failures would pass the same test during a second run.
Two other devices will not finalize, with a cr50 error that I'm still looking in to.
10-19-2018 12:15 PM - edited 10-19-2018 12:16 PM
Just got an email from Lenovo a couple minutes ago. Reposting here for visibility.
Attention Service Managers, Lenovo is investigating a reported issue with the "Shim Updates for Chrome OS - 100e Chromebook, 500e Chromebook". Lenovo is requesting services to hold all system repair actions that require the "Shim Update" until further notice. Do not run the Shim process; an update will be provided by 10/23.
10-20-2018 08:27 AM
Harry, have you seen devices that have blank screen and users say they don't boot. There is an orange indicator light indicating there is battery life. If you plug in an external monitor, you get video? Just curious as we are seeing this.