05-10-2019 02:11 AM
Hi, I'm having this annoying problem where each time I power on the computer, this tamper error message comes up, forcing me to hit escape so that i can boot to desktop.
I've tried enabling and disabling this option in bios, resetting bios to default, setting and deleting supervisor passwords, none of that worked.
I've also tried removing and putting the cover back on, checked for any visible spacing on the laptop case, no luck.
I'm not that frustrated, but it still is kind of annoying.
Anyone got any ideas?
Solved! Go to Solution.
05-10-2019 08:30 AM
The only times I have seen this, there was something physically broken or not aligned. If I remember correctly, on this model, the tamper switch is under the little rear cover (near the wireless card). Take the cover off and look at things. There will be a little switch on the motherboard that is supposed to get depressed when the cover is on. Make sure the switch moves and the piece on the cover that is supposed to push the switch is not broken, Put the cover back on. Then boot into the BIOS, and remove the supervisor password. Hit F9 to load defaults, and save the changes. Reboot and see what happens.
05-10-2019 10:22 AM - edited 05-10-2019 10:28 AM
Nope, that didn't do it either. I can't seem to find this tamper switch, and I checked the manual too.
On a sidenote, the t470 has no little rear cover, it's one piece.
Perhaps, if I could locate the switch, I would be able to determine the nature of the problem. I'll upload an image of the mobo, maybe someone could spot it.
05-10-2019 08:14 PM
Sorry. I was dealing with 2 threads and answered about the wrong model when I talked about the small rear cover. I'm not sure where it is on the T470. The switch has a base that's about 3mm square and there is a swing arm that goes up at a 45-degree angle
05-11-2019 09:44 AM
Thanks, I think I found the switch, and if i'm correct, it's on the left side next to the external battery. I don't seem to find anything physically wrong though, nothing broken or out of place.
I'm thinking about the possibility of BIOS being messed up, for when I got the laptop there was no supervisor password set, and the option of bottom cover tamper detection was disabled. From what I gather, the tamper error appears only when there's a supervisor pass already set.
05-12-2019 05:46 PM
I got the answer from development team that the message you saw on your T470 is Tamper Detection Switch is physically broken.
That is why you always see this error message whatever you change BIOS Tamper Detection settings.
I recommend you to contact Lenovo service to repair.
For normal tamper detection error message is "System Security - Bottom cover tamper detected".