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LENOVO THINKPAD E14 JE442/ JE542 NM-E211
Thinkpad E14 Gen 4 Intel - NM-E211 REV0.1 Schematic And BoardView
Thinkpad E14 Gen 4 Intel - NM-E211 REV0.1 Schematic And BoardView
computrace need backup EC and patch 35$
model not support
dezamora98.temp
Registered member
what exactly is the process to remove the supervisor password on a thinkpad E14 (JE442/JE542 Rev: 1.0 NM-E211); in addition to the bios memory of UB1, should I also modify UB4 and UB9?
password in I/O like ( MEC, ITE, ENE )
do you have jtag port for ec connection?
ec name ?
hi need help, LENOVO E15 GEN 4.
PF-3YWK8S
21E6-005FSP
JE442/JE542 REV 1.0
Bios seems to be changed because flux and solder remains, maybe need new bios or clean bios.
Charger + batery: charger detected, batery led turns on orange, press turn on button and it lights, few seconds and turns off, no video, no fan, no cpu heat, no usb power.
Only charger: charger detected, press turn on button and it lights a few seconds and turns off, no video, no fan, no cpu heat, no usb power, and restard by itself again and again and again until i have to turn off.
With battery PQ4000, PL4001, QB5 and QB6 heats... but measures with multimeter are normal.
Please see attached video and images
PF-3YWK8S
21E6-005FSP
JE442/JE542 REV 1.0
Bios seems to be changed because flux and solder remains, maybe need new bios or clean bios.
Charger + batery: charger detected, batery led turns on orange, press turn on button and it lights, few seconds and turns off, no video, no fan, no cpu heat, no usb power.
Only charger: charger detected, press turn on button and it lights a few seconds and turns off, no video, no fan, no cpu heat, no usb power, and restard by itself again and again and again until i have to turn off.
With battery PQ4000, PL4001, QB5 and QB6 heats... but measures with multimeter are normal.
Please see attached video and images
Download list
video_2025-08-04_16-51-12.mp4
43.8 MB · Views: 1
43.8 MB · Views: 1
need try one bios new and compare before
OK, LET ME KNOW, AND SEE VIDEO ATTACHED PLEASE
Just looking at the video that cannot be recognized, do you back up the original BIOS? Attached here for me to check
I have a back up but I think is corrupted. Because I read it 3 more times and all are different.
