Replacing nand/flash chip on TV's

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • sigmeyer
    Senior Member
    • Feb 2020
    • 158
    • Serbia

    #1

    Replacing nand/flash chip on TV's

    Hello , i was wondering how would i go about replacing nand chips on TVs?
    Recently i had a few tvs that i couldnt fix because one had a corrupted nand chip and one just kept rebooting *psu fine) . Can i just find a random nand chip , solder it on , then boot with usb firmware ? would it update or do i need to Pre-write the chip before soldering it?
  • William1967
    Badcaps Veteran
    • Nov 2017
    • 215
    • Netherlands

    #2
    Re: Replacing nand/flash chip on TV's

    No, you can not use an empty nand and start the tv up via USB. Firmware is used to update and that is much different. For example i have a few Sony's with more than 12G software inside the nand, the firmware is only 1,2G

    Comment

    • mazmaz
      New Member
      • Jan 2021
      • 3
      • Iran

      #3
      Re: Replacing nand/flash chip on TV's

      Hi,
      for re programming a nand or emmc chip,
      You should remove it and place on universal programmer and burn a good dump backed up file and re solder it again exactly in its place.
      or in some circuits you are able to do onboard programming by some universal programmers without removing it as JTAG.

      Comment

      Related Topics

      Collapse

      • tranquility
        Onkyo TX-NR809 – no hdmi, DTS or NAND chip ? stuck at starting kernel
        by tranquility
        Hello,
        i want to repair an Onkyo TX-NR809 receiver.

        symptoms:
        on power on, display appears and i hear one click. enue functions is given.
        - no hdmi output
        - audio output not tested, but i think it is not there
        - usb sticks are not recognized

        if i read out the chips with display+standby button + tone+
        both dts show only ????

        chip is D830K013BZKB4

        things i have done:
        - reflow of the dts chip without taking off and reballing
        - changed the aluminium caps without the big one with 25v because i dont...
        08-25-2025, 01:04 AM
      • zoltor
        Canon G3430 has a lightning flash after the firmware
        by zoltor
        Good afternoon. The Canon G3430 is lit by lightning after the firmware, it does not respond to the buttons. I did not flash it, they brought it with traces of soldering, and all three chips. SPI - IC401 25Q128, IC402 25Q32, IC403 M24128. The SPI flash drives may have been confused in places. The QM8-0985 formatter. I've tried all the firmware available on the Internet, and the result is the same. I ask you to send dumps of chips, if someone has the same revision of the board, also tell me if the location of the SPI flash corresponds to the position numbers. Thank you very much in advance.
        09-17-2025, 12:40 AM
      • acedogblast
        Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
        by acedogblast
        This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

        There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
        11-02-2024, 05:13 PM
      • ebugs
        Asus laptop EC/SIO chip replacement
        by ebugs
        Asus Vivobook 15 (board X513ea R2.0) gone dead when user plugged an iPhone cable into the USB-C port during boot. Now there's no LED light, no power at all. I checked all MOSFETs and capacitors, no shorts found. The board only has 3.3V and 5V present, no other voltages.

        I injected 3.3V into the EC chip power rail (ITE IT5125VG 128), and it draws 80mA, while the 3.3V LDO chip RT8249C has a max output of 100mA. I checked the boardview and found there are only two chips on this 3.3V rail, EC and Realtek audio chip. So I think EC could be the problem.

        I found the EC chip...
        09-14-2024, 02:09 AM
      • ekozeko333
        [Help] Lenovo Yoga Slim 7-14ARE05 (DA0LS3MBAF0) – 25Q80DVN1G Flash Is All FF, USB-C PD Stuck at 5V
        by ekozeko333
        Hi all,
        I’m trying to recover a Lenovo Yoga Slim 7-14ARE05 with board DA0LS3MBAF0 Rev:F. I’ve run into an unusual issue where USB-C PD is stuck at 4.7–5V and the system won’t boot (keyboard lights flash briefly, then nothing).
        🔥 The Problem Started After Suspected ESD/PD Fault
        I experienced a power issue or ESD event through a USB-C charger
        After that, the NX20P5090 power switch was visibly burned and was replaced
        Now the PD controller always negotiates 5V @ 2A, even with known-good chargers
        🧠 What I’ve Done So Far
        Flashed...
        06-21-2025, 02:48 AM
      • Loading...
      • No more items.
      Working...