1. FXDX

    OP FXDX GBAtemp Regular
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    If you put eMMC memory on another switch it will always display only black screen if memory is ok, because the biskey are unique for each Switch. First try a reball at the eMMC. If you still can't let Hekate run then the problem is from Tegra processor and you will have to try one reball or reflow if you have no Reballing Station BGA, stencil and balls.
     
    Last edited by FXDX, Jan 22, 2020
  2. ds34

    ds34 GBAtemp Fan
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    Well... I have no idea how to do reballing/proper board level repairs. I also never used a hot air rework station before
     
  3. FXDX

    OP FXDX GBAtemp Regular
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    Then my advice is to look for someone who knows how to do and also has the necessary tools.
     
  4. ds34

    ds34 GBAtemp Fan
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    Were you able to boot hekate before you reballed your apu? Did memloader work for your?
    When did the bsod appear? Did it show the Nintendo logo?
     
    Last edited by ds34, Jan 22, 2020
  5. mixelpixx

    mixelpixx hardware monkey
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    Always reball/resolder these devices with LEADED Solder, all of the new solders that do not have lead, will crack at solder joints..
    Also for a rework like this, to make sure BGA seats, you should pre-heat the main board to about 100deg f for about an hour prior to attempting reflow. As for your working temp of 300F, most devices (BGAs anyway) can withstand up to 700F for a few moments. Not sure what max temp is on this BGA but find NVIDIA similar chip and see what its max reow/ramp up is.

    THese projects arent for beginners.
     
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  6. FXDX

    OP FXDX GBAtemp Regular
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    Yes i could run Hekate. If you read my first post you will see that i had no problems with eMMC memory. Bsod appears immediately upon startup.
     
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  7. mixelpixx

    mixelpixx hardware monkey
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    does pressing down on chip allow boot? does hot or cold allow boot?
     
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  8. FXDX

    OP FXDX GBAtemp Regular
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    The answer in my case: not allow boot if i pressing down on chip and did not hot up. I solved the problem by doing reball to SoC.:switch:
     
    Last edited by FXDX, Jan 24, 2020
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  9. seidolino

    seidolino Advanced Member
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    Which variant do I have to buy? The "Direct heating", "80x80" or "90x90" ?

    Thanks
     

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  10. FXDX

    OP FXDX GBAtemp Regular
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    Direct heating
     
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  11. consolex

    consolex GBAtemp Regular
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    I am looking for a stencil for BGA WIFI ???
     
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  12. FXDX

    OP FXDX GBAtemp Regular
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    Last edited by FXDX, Feb 20, 2020
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  13. consolex

    consolex GBAtemp Regular
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    :bow:
     
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  14. Bohne

    Bohne Member
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  15. seidolino

    seidolino Advanced Member
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    maybe @FXDX can answer this question regarding the reballing station, but I'm able to reball/remove/reflow the CPU without any problems with my hot air station AOYUE Int 852. Be aware that you have to use a bigger noozle (IMG_1927.JPG), not a too small one (IMG_1926.JPG) for removing/reballing the CPU. I'm using the small one for the M92T36 or the USB IC, or for iPhones and the bigger one for the CPU.
     

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  16. FXDX

    OP FXDX GBAtemp Regular
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    An infrared or hot air station with temperature control sensors and a profile suitable for the chip you are working on, is what you need for a successful reball. That station from your link. is a "toy" but i think you can work with it on a switch......
     
    Last edited by FXDX, May 17, 2020
  17. Bohne

    Bohne Member
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    Thanks for your support.

    Are you using reballing soldering balls(if yes, which size) or do you prefer soldering paste?
     
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  18. FXDX

    OP FXDX GBAtemp Regular
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    I used 0.35 balls.

     
    Last edited by FXDX, May 19, 2020
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  19. drapolas

    drapolas Newbie
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    Hi,
    now it's possible to use a donor NAND

    my question is: now it is possible to change TEGRA X1 with donor board?
    thanks
     
  20. FXDX

    OP FXDX GBAtemp Regular
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    From a technical point of view it is possible but it will not be functional. There are several chipsets that need to be "transplanted" from the donor board, to be have a functional switch.
     
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