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  • Syseng
    Lenovo P14s Gen 5 SVP unlock
    by Syseng
    This sums up discussion related to Lenovo P14s Gen5 in this thread. Credits go to Sbaro and especially Maxpower3. The locked dump is attached.

    The device is based on NM-F871 motherboard with Nuvoton NPCK397 series controller. The motherboard also contains three BIOS chips: two different Winbond chips for main BIOS and external EC flash, and also a Gigadevice chip which purpose I do not know. The password information is contained directly in controller and thus can be manipulated by reprogramming it, so reprogramming BIOS chips is technically not required, however you may wish to make...
    06-22-2025, 07:44 AM
  • ravi_1617
    HCL Laptop SCREEN SIZE SHRINK LEFT SIDE AROUND 2 INCHES
    by ravi_1617
    Hello to all ,
    I have this HCL ME LAPTOP K 41 ,screen image is shrieked clock /speaker left side approx. 2 inches .Its 14.1 LCD SCREEN. I have replaced lcd screen ,found no difference
    Its blank that area blank and bottom of Task bar is rolled at bottom displaying top portion image . In bios /setup also getting same problem
    on external VGA port image is perfect /normal , Attached image...
    07-25-2025, 12:07 AM
  • howardc64
    Samsung QN75Q6FNA backlight no display, red LED blink 2x, fault in panel
    by howardc64
    • Prior owner tried a replacement main board. No difference.
    • Samsung 2x red blinking standby LED = panel fault
    • Jumpered FB_TRDY_1 (pin 1 CN1300 left. main tcon->left side buffer boards) and FB_TRDY_3 (pin 95 CN1301 right. main tcon->right side buffer boards) This allows testing individual T-Con (on main board) connection to panel on this Samsung. Found fault on left side (viewing from rear of TV)
    • Each side has 2 buffer boards, disconnected left side flex between 2 buffer boards. Fault is on the left most board.
    • Tape masking eventually isolated to CN1300 pin 15 (CKV4_GOA) Display
    ...
    07-19-2025, 10:54 PM
  • howardc64
    TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
    by howardc64
    All left and right refers to looking from rear of TV (or looking from front with TV upside down)
    • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
    • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
    ...
    07-24-2025, 05:17 PM
  • Glaval
    Sony OLED XBR-65A8G 4 flashes
    by Glaval
    Hello, my Aunt recently gave me her broken Sony XBR-65A8G OLED after getting a replacement. It had a 4x led flash error, a replacement T-con didn't fix the error but with helpful info from this forum I found one of the smd ceramic caps on the panel pcb (C575/C378) on a 24v line was shorted to ground. I removed that cap and the tv turned on without error. It still had a black screen with the original t-con back in it, once I put the replacement t-con in it finally had a picture. After doing a panel refresh it had a very good picture but with a few vertical lines for some scenes. For owners with...
    01-23-2025, 04:04 PM
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