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xMax
Blue Screen Again
Posts: 3
Registered: ‎03-18-2017
Location: GB
Views: 487
Message 1 of 3

Yoga 3 Win 10 after Anniversary update BSDO (RTL8723AU)

After few years of running win 10 (I upgraded from 8.1 as originally came with laptop) an anniversary update came out so I tried installig few times but it always ended up with BSOD and automatic rollback. One evening I left laptop sleeping overnight and when came back in the morning I found the update installed. After Welcome to your new windows wizard I logged in and got BSDO. After fiddling about in safe mode/bios disable-enable cycles and trying normal boot I figured out that wlan driver was the root cause. I tried any drivers I could find includig suggested legacy Qualcomm Atheros driver to no avail. I can run in safe mode but wifi is now always in airplane mode, the machine is unusable. 

Minidump says:

APC_INDEX_MISMATCH (1)
This is a kernel internal error. The most common reason to see this
bugcheck is when a filesystem or a driver has a mismatched number of
calls to disable and re-enable APCs. The key data item is the
Thread->CombinedApcDisable field. This consists of two separate 16-bit
fields, the SpecialApcDisable and the KernelApcDisable. A negative value
of either indicates that a driver has disabled special or normal APCs
(respectively) without re-enabling them; a positive value indicates that
a driver has enabled special or normal APCs (respectively) too many times.
Arguments:
Arg1: 00007ffd73348324, Address of system call function or worker routine
Arg2: 0000000000000000, Thread->ApcStateIndex
Arg3: 000000000000ffff, (Thread->SpecialApcDisable << 16) | Thread->KernelApcDisable
Arg4: ffff8980b98a0b80, Call type (0 - system call, 1 - worker routine)

I was also thinking of changing wifi card but read about Lenovo being restrictive with BIOS wifi whitelisting so chances are I won't be able to.

Did anyone have same problem? Any help or suggestions what to do next?

Support Specialist
Posts: 2,948
Registered: ‎02-22-2017
Location: GB
Views: 417
Message 2 of 3

Re: Yoga 3 Win 10 after Anniversary update BSDO (RTL8723AU)

Hello xMax

Thanks for using the Lenovo forums.

Try to download the WiFi and Chipset drivers for the unit from the support page.

 See if these make a difference, make sure to reboot after an update.

 

Hope this helps, let us know how you get on.


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xMax
Blue Screen Again
Posts: 3
Registered: ‎03-18-2017
Location: GB
Views: 410
Message 3 of 3

Re: Yoga 3 Win 10 after Anniversary update BSDO (RTL8723AU)

Hi Krakken, thanks that did not help either...

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