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Lenovo X1 Carbon Failed flash now wont boot with CMOS battery present
#1
I posted on here for assistance with removing the whitelist from my x1 carbon 2014 (2nd gen), and was contact via PM by a user here, who offered some assistance for a small fee, which I accepted. 


I dumped the bios he returned using a raspberry pi, and it booted up and had indeed removed the whitelist, however due to a TPM security issue it now had 5 loud beeps, and a long delay on every boot, which I didn't like. 

The user recommended I disable the security chip, the shut down, remove the cmos battery, boot to windows, then shutdown, reconnect the cmos battery, and it should all be fixed, however once i reconnected the cmos battery, the laptop will now not boot. 
The power light flashes 3 times, and then it shuts off, 
If I remove the cmos battery I can boot, with a message that there is no system time, and most tellingly
"bad CRC of security settings in EFI variable"

And of course i lose the time each reboot. 

I tried flashing back the old bios, but the result is the same. 

Is there any solution to this?? Or is this laptop bricked? 

Many thanks for any help.
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