Mr.Pc
Member
Last Activity: 04-16-2025, 07:55 AM
Joined: 01-31-2023
Location: João Pessoa - PB
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I am very grateful... -
I thought the same thing as you. As soon as I connect the source, the button LED already blinks and keeps repeating this and it is not an error code. I'm not very excited about this board due to the lack of material to analyze it and I'm also learning. I checked the coils and the ones I didn't mention are because the resistance is high or there is tension in them. Thank you in advance for your attention....
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Help with HP Elitebook 840 G3 notebook without turning on.
Hello everybody! I have this HP board 6050A2892401-MB-A01 that doesn't turn on and the power button LED only blinks
. I went to check the voltages on the inductors and found 5.24v, 0.99v and 1.84v and on the 3.3v inductor the voltage fluctuates between 3.30 and 3.37. I also noticed that in the 25Q64 the voltage oscillates between 3.36 and 1.5v and in the 25Q128 it oscillates between 3.3v and 3v. This notebook already came from another place and I don't know if the bios program is correct. If anyone can help me I would appreciate it.
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Thanks!...Leave a comment:
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I always add soldering flux, leave the blower without the nozzle and use stronger air flow. Turn on the station, wait 1 minute to warm up better and then make circular movements around the IC. Use tweezers to check if the IC has come loose. Furthermore, you need to practice a lot until you improve your technique.Leave a comment:
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Bios request or check if it works. Samsung TV UN32J4300
Hello everybody! I have this TV that doesn't turn on, it just stays on standby and won't start. I've already checked the voltages and I have 19v, 13.33v, 4.98v and 3.33v. I disconnected the screen and Wi-Fi, but it still didn't turn on. So I would like if anyone could help check the bios or have a copy of it to help. The motherboard label model is BN94-07831V. Thank you in advance for everyone's attention.... -
You can only change the LED that is bad, but the ideal is to change them all.Leave a comment:
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Sorry! Acer A515-51-56K6 Model N17C4 - SNID: 74346771395 My board is the C5V01 LA-E891P REV 1A. Grateful!...Leave a comment:
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Hello everybody! Could anyone help me and see if this bios is working? My board is the C5V01 LA-E891P REV 1A. Grateful!...Leave a comment:
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I haven't made the purchase yet, but I'm grateful once again for this important tip....Leave a comment:
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Since then you've helped me until now, so it wasn't a lack of help. I'm going to try to buy another motherboard. Have a good day!Leave a comment:
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Hello! I replaced the inductor and it was back to normal. I believe that when I went to remove it I heated it too much and it must have ruined it. On the 24c the LED was blinking the same way. I did both with your dump and mine again....Leave a comment:
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Got it! The 24c is soldered correctly. I turned on the board without it and the regulator still gets quite hot, so I removed the inductor and it doesn't heat up anymore, but I believe that something really happened in these tests because when I put the inductor in, both the regulator and the inductor start to heat up again. I'm going to change the inductor tomorrow to see what happens because I don't have equipment to measure inductance. Regarding deleting the 24c, when I open the recorder program, the option to delete it becomes unavailable, so I can only load the .bin file and program....Leave a comment:
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I made the recording, but it didn't work. Now the LED no longer blinks, the regulator that was previously oscillating between 2.5v and 3.3v is now between 1.12v and 1.11v and getting very hot. I took the 24c off again and put the old software on, but it persisted the same way. To program the 24c, just load the .bin and click on program, right?...Leave a comment:
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Right! I'll do it now and I'll be back here to tell you....Leave a comment:
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Forgiveness! It was my lack of attention
. I managed to read it now....
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I had already done this, but another error occurred. (check id error) So as I didn't know what it was, I was afraid to continue....
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I can yes!...
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Thanks for the explanation regarding the schematic. Regarding reading the eeprom, I unsoldered it and put it in my adapter, which is also soldered to the eeprom, but it didn't recognize it, so I believe it is bad. An interesting detail is that it doesn't have a pin 1 indicator (only on the motherboard it does) and I also didn't understand why pin 1-4 is on gnd on the motherboard, I looked at the datasheet to try to understand better but it didn't work. Anyway, I imagine that if this eeprom is bad, I won't be able to solve it because of the software that I can't read....Leave a comment:
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Hi Lotas! Me here again. Analyzing the 3.3v voltage it is also oscillating and then I realized that when removing the inductor from the 3.3v dc/dc regulator (this regulator receives 13v from the source board), after removing the inductor, the 13v from the source board stabilizes, however, As I said, I didn't find any type of short or apparent leak. I also checked if the 3.3v regulator heats up beyond normal, but it doesn't heat up at all. Don't you have the schematic for that board? Now I tried to read the 24512FD (it has pins 1-4 connected to gnd) but it gave an error and I couldn't read it....Leave a comment:
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