07-29-2017 08:48 AM - edited 07-29-2017 08:55 AM
My system runs Windows 7 Home version, 64-bit Service Pack 1 and has applied all updates. I use Outlook extensively and run the iCloud for PC add-on for syncing with my iPhone and iPad. Just after finishing some updates to my task list in Outlook, and while Outlook was syncing with iCloud, we had a power failure in our house and the wifi router immediately shut down. Although my laptop had a fully charged battery and is plugged into a power surge protector, it competely froze. When I say "froze", I mean just that. The laptop simply stopped; can't move the cursor; can't Escape; and the hard drive is totally stopped - no lights indicating motion. Shortly thereafter, the laptop's internal fan starts to run at full speed and that's the state it stays in until rebooting I tried to run the computer in Safe Mode (using Network Connections) and the PC froze again. I rebooted again, using Safe Mode without Network Connections and the system came back up. From there, I conducted a restart to Windows running normally and the computer froze again. I deduced the problem was wifi, so I using the external wifi switch, I turned wifi off. After turning off wifi, I am able to bring the PC back in both Safe Mode and running Windows normally, however, anytime I engage the wifi switch, the same thing happens.
I have since updated all wifi drivers, and device manager indicated they are all operating normally. I tried restoring the computer to an earlier state before the power failure and that did not solve the problem. I AM able to connect my laptop to our network with an Ethernet connection, so the computer is usable in that regard, but nothing fixes the wifi problem and I am now of the opinion this is a hardware problem that must have been impacted by the power surge as it was engaged with the router and in the midst of an iCloud sync. I even deleted iCloud for PC thinking it somehow became corrupt and this might be the problem, but to no avail. SO, I have two questions: (1) Is there anything else on the software side that I might try to bring back my laptop's wifi capability?(2) If this is a hardware problem, can the fix be as simple as replacing the wifi card inside the machine? And I guess a follow-up question would be, can you point me to a resource for determining which wifi card I need to buy and how do I go about replacing it?
07-31-2017 08:46 AM
Thanks for using the Lenovo forums.
This would indeed seem like a hardware issue, I would suggest that you do not do much else to the unit to prevent any further damage to it.
I would recommend, that you call your local Lenovo support line for a possible repair on the device. Below is the link to the phone list where you can find these numbers
Hope this helps, let us know how you get on.
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