Acer Travel mate tmp253-m lights some times.
Hi plastecn, most likely you have to reball or reflow the video chip, try first extracting the BIOS and rewrite it to get more doubts
Will you have to desolder the BIOS to record it again with a programmer, do you have a common soldering iron or soldier station?
hello very good afternoon try to put new BIOS stack receive best regards oki friend.
Well, recorder do you have? Try disconnecting the battery from the BIOS as the colleague says for 10 minutes and put it back, when you turn on check if the video chip or cpu heat up a lot, if the video chip heats up you are likely to have to do reflow, I sometimes do I did and it has given me positive results
The BIOS usually corrupts too, you could build a homemade recorder, but before that try other memory, disconnect the disk, the wifi board the keyboard etc, disconnect everything and try to turn on
Look, read this can help you, how to rewrite BIOS, if you see that it is complicated, take it to someone who has a recorder.
If you already tried everything and you continue without result, this could turn out to be
https://www.fontana.com.ar/2016/08/19/reprogramando-la-bios-netbook/
Excuse me, victor, will that link programmer you send work for me? https://www.ebay.com/itm/25-SPI-Series-24-EEPROM-CH341A-BIOS-Writer-Routing-LCD-Flash-USB-Programmer-DE/172138961522?epid=933810298&hash=item2814481a72:g: TDcAAOSws4JW7Nso: rk: 1: pf: 0
Yes, it works for you, but you have to know how many volts the chip is powered with, there are chips that are powered with 3.6V and others with 1.8V, for those of 3v you can use the programmer alone, for those of 1.8v you have to use a regulator that comes for the programmer.
I don't know what country you are from, but I show you this
https://articulo.mercadolibre.com.ar/MLA-675498515-adaptador-18-v-spi-flash-w25-mx25-ch341a-iphone-18v-_JM
First make sure the chip is 1.8v and not 3v before making your purchase.
Have you tried disconnecting everything before? Did you try to connect to a monitor too, try without battery and charger, with another charger, another battery, memory, no disk? Etc, I ask you not to make the purchase and let you down.
There are other methods to rewrite BIOS, without extracting the memory but I do not remember, I did that before when I had no recorder, also notice that. Anyway, the purchase will not be over, on more than one occasion you will use it not only to re-record BIOS, but for some TVs too
Exactly, that's why I decided to buy it because there are so many cases. I am from Rep. Dom, I do not test another charger because the one I use is sending voltage and power without problem but I feel that it is lack of any signal, to the gate. But I tried with all that, measuring yesterday I could see that there is a mosfet that is damaged because the diode measures well but the resistance did not place the datasheet of the part here. http://pdf1.alldatasheet.com/datasheet-pdf/view/530218/VISHAY/TP0610K-T1-E3.html
I'm trying to see if I get that mosfet on another plate but it's not very easy to obtain.
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