Windows 10: I bought my Lenovo Thinkpad Grand 4 T480 second hand and I can't remove the activation lock...

I put a jailbreak on my Lenovo Thinkpad T480 and when I charged it and turned it on and off for it to take effect it stopped workingBSOD CRITICAL_TERMINAL_JAILBREAKED appearedWhen I plug it into a charger or an Acer computer it turns on but the button and the screen to put recovery from another PC workI don't know what I did wrong and also the jailbreaks were compatible and the Thinkpad Home Screen doesn't appear. Among other messages, your PC ran into a problem and needs to restart, you can restart. I also can't connect Acer PC to Thinkpad PC and it works CRITICAL_TERMINAL_DANGEROUSSeveral pr

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Personal Hotspot on iPhone not detected on Thinkpad T480s

I used to be able to connect my iPhone 6s (iOS 13) to my Thinkpad T480s (Win 10 Pro, 1903, latest updates) via USB-C and use the personal hotspot on the iPhone to connect to the internet. This worked without any issues for several years through several upgrades of iOS and Windows.
Now I switched to an iPhone 11 Pro (iOS 13) and the T480s does not detect the iPhone's personal hotspot any more. Personal hotspot is turned on on the iPhone 11 Pro. The T480s sees the iPhone and I can browse its content.
The personal hotspot on the iPhone 6s (also iOS 13) is also not detected any more since I updated the following Apple software on the T480s to the current versions:

• AppleApplicationSupport64
• AppleMobileDeviceSupport64
• AppleSoftwareUpdate

Am I missing something here?

 

Lenovo Recalls 208,000 ThinkPad Batteries

On March 1, 2007, Lenovo voluntarily recalled certain 208,000 9-cell lithium-ion batteries. These batteries were manufactured for use with ThinkPad notebook computers that shipped worldwide between November 2005 and February 2007. All ThinkPad R60, R60e Series, ThinkPad T60, T60p Series and ThinkPad Z60m, Z61e, Z61m, and Z61p Series with 9-cell 10.8V, 5.2 Ah batteries with part number FRU P/N 92P1131 are being recalled. All affected batteries will be replaced free of charge. Lenovo suggests those computers with defective units remove the battery and use the AC adaptor until a replacement has arrived.

Source: Lenovo

 

Personal Hotspot on iPhone not detected on Thinkpad T480s

Got it working. In the end there were two issues:

• iPhone 6s manages with only the apps I listed in my first post, but iPhone 11 Plus seems to require a complete installation of iTunes
• The Thinkpad T480s has two USB-C sockets. One is USB-C only and the other is USB-C / Thunderbolt. The one that finally worked was the USB-C only. The USB-C / Thunderbolt does not seem to work. USB-A works reliably too.

Thanks a lot for your inputs. They pointed me in the right direction