Hi guys;don't if this questions from customers and answers from MS have been posted here?
http://answers.microsoft.com/en-us/i...4-45f4b7ed2fb9
http://answers.microsoft.com/en-us/i...4-45f4b7ed2fb9
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Common SPI bios chip programming Questions and Answers
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Q: I have a bios request,i can`t post my backup as i can`t read from the chip.
A: If you can`t read from it how do you expect to write to it ?.
Q: Why is my bios chip unreadable ?.
A: The programmer is faulty or has a worn or broken zif socket.
The USB cable is frayed,connector pins worn or some other physical damage.
Not enough amperage or voltage to power the programmer properly.
Bad...09-02-2021, 04:40 PM -
Hp Probook 450 G7 s# SCD0348W35 had a locked BIOS. Bought BIOS and EC chips off Ebay that were supposed to match this machine - the 450 G7. Flashed in the BIOS on chip i bought using a CH341. BIOS unlocked next boot. Some error to contact HP. Entered BIOS and reset to system defaults and rebooted. Machine worked fine but every cold boot the contact HP message popped and everything else worked as fine. Assumed the error was from EC chip not matching BIOS that i just flashed in. So i flashed in the EC that was supposed to match from the EBay chip i bought and instant brick.
Ive got...07-08-2025, 09:24 PM -
Hi I am trying to refurbish this crossover with some higher quality poly-caps/parts... The speaker is a in-wall Polk 65-RT... Key questions I have are:
1) What in the world is the yellow part on the board (label is MET 1.0J 100V)?... Should I even consider replacing it?
2) The 470uF cap.... Does anyone know have a suggestion as to where I can find a reasonable audio quality polycap near that value? (or at least 3 160s or the like?) { I don't want to spend $70 just to replace this one if I can) (maybe even someone looking at this circuit could even tell if this cap is important... -
Apologies if I am asking the wrong questions , but not sure how else to start:
I have an A2251 / 820-01949 Mac book pro with no power, 20 v on USBC meter and 0.05 Amps. Following this link ( below)
* Do I need to remove the board from case so I can access its other side ? The link calls for measuring PP3v3_S5 ( I suppose this is in diode mode with positive probe on ground) , but I don't know how to do that without removing the board from case.
* I have the FlexBV board , are the values displayed in volts diode mode only ? Because my etekcity multimeter shows... -
I came across a 50inch TU8000 that wouldnt start up properly (blinking stand-by light, backlights would cycle on and off).
When i opened it up and removed the power to the mainboard the backlights powered up and everything looked uniform.
When reconnected the mainboard but disconnected the flex cable to the panel i heard the TV startup with the intro sound.
Later I checked for shorts on the panel PCB boards but could not find anything.
When I took a look with the FLIR i noticed the 2 resistors...