Re: Asus vivobook 17 x712f
Thank you hoaca388, i tried this dump but it did not work at all.
After burned and verified ok, the computer did not even want to power on. Looks dead. I restored the original BIOS to verify, no hardware damages.
yoritomo
Senior Member
Last Activity: 11-07-2023, 04:04 PM
Joined: 09-09-2012
Location: charleroi
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Last edited by yoritomo; 10-19-2023, 01:51 AM. -
Re: Asus vivobook 17 x712f
Thanks for your reply , i write then all the information below :
Model X712F
SN: 24M L5N0CV19X012228
Motherboard :Asus X512FF Rev 3.1
Thanks a lot.Leave a comment:
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Asus X712F
Hello
This computer is blocked with the BIOS password on boot, the procedure with Alt+R does not work on this model, then I of course watched other topics about this computer in this forum , I tried the dumps proposed without success.
Please can anyone fix the original dump to reset the password ? I joined it .
Thanks for you help....Leave a comment:
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Re: Samsung UE50HU6900SXXN
hello
No one has this firmware ?Leave a comment:
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Samsung UE50HU6900SXXN
The TV is on boot loop, only the smart logo is showing, then the screen remain blank with backlight for some seconds and then it is restarting.
It has been some dry joints in the power supply board, i fixed them, capacitors are good, coming out from it , the 5V is steady, the 13V is at 12.75V and is dropping to 2.95V always, I am not sure if it is a switchable power or not.
I guess the problem is coming from a corrupted firmware in the EMMC but I could not locate a dump to try, the chip is a KLM4G1FEAC-C031, I would not be pleased to replace that BGA chip neither... -
Re: SAMSUNG UE55MU6405 - no standby
Which device do you recommend then ? Or may it exists an alternative software or patch for it ?Leave a comment:
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Re: SAMSUNG UE55MU6405 - no standby
Yes I know, but even from official spare parts providers I could never grab any correct Samsung Nand chips without any bad blocks, I tried to use the three method to override bad block, but no success ... with the same software as you showed for RT809HLeave a comment:
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Re: SAMSUNG UE55MU6405 - no standby
Wow thank you so much, now it is working fine, I did not know it needs to be protected, is it sometime the case for Nand chips too ? Because I failed them always ...Leave a comment:
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Re: SAMSUNG UE55MU6405 - no standby
Thanks for the dump, but looks like something else is wrong, still be no reaction from the stand by LED, the processor keeps cold as well as RAM chips, no POWER_ON signal going to the power supply, I could find 1.8V on the power button, and 3.3V is coming to the IR module.
I don't know which is the vital power supply in stand by mode on this motherboard.
Pins 1,7 and 8 are powered with 3.4V at IC1604
Anyone as a clue ? As usual with Samsung no schematics for this board ....Last edited by yoritomo; 03-07-2023, 07:35 AM.Leave a comment:
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Re: SAMSUNG UE55MU6405 - no standby
Thank you for the reply
This is mine, may I ask what are you modifying ?...Leave a comment:
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Re: SAMSUNG UE55MU6405 - no standby
Hello
Same problem with UE55MU6225WXXN , I could not find the dump for the eeprom IC1604 anywhere, please anyone can find it ?
Thanks you very muchLeave a comment:
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Re: RT809H External QFP48
Hello
This post i suite old already, i know ! But i would like to add some information as update for readers, This chip is especially used on Samsung mainboard and Samsung enables some connections to flash this chip onboard.
Then to be brief, using the ISP port of RT809H connect the blue and grey wires to SDA and SCL and the black wire to GND of the mainboard, power the main board with its power supply, and that is done, the programmer can access the chip to do anything as necessary.Leave a comment:
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Re: LCD/LED panel display tester.
Then i would understand it is not really worth to have such tools for actual days tv sets , anyway i just discovered new methods for panel troubleshooting in my new e-book , that may help but only with ancient models ...Leave a comment:
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Re: LCD/LED panel display tester.
Hello
It is not up to date for actual models and surely not forecasting any evolution
that is a lag, thanks for this remark.
I have been watching for such monitor too, but i think it will suffer about the same problems as double LVDS and ancient LVDS design resolutions ... that look very good anyway, not cheap unluckily.
The LCD tester does enable to connect directly to the panel as well ? or only depends of the t-con board ?
PS: the link you gave me looks like an...Last edited by yoritomo; 02-11-2020, 02:46 PM.Leave a comment:
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LCD/LED panel display tester.
Hello all
I found it in my e-book i am reading , they said it is a good tool to troubleshoot panel and t-cons. What do you think about the LCD/LED panel tester [URL="https://fr.banggood.com/5_6-84inch-LCD-LED-Panel-Tester-LVDS-Screen-Tester-TVComputerLaptop-Repair-Tool-p-1152153.html?country_sel=73¤cy_sel=USD&cur_warehouse=CN"]https://fr.banggood.com/5_6-84inch-LCD-LED-Panel-Tester-LVDS-Screen-Tester-TVComputerLaptop-Repair-Tool-p-1152153.html?country_sel=73¤cy_sel=USD&cur_warehouse=CN[/URL]
Is it really useful , and is it doing -
Re: Any convenient cheap programmer for TV chips ?
I think, firstly i will concentrate on reprogramming BIOS only, it looks like more regular than Nand flash, anyway at Aswo i can order most of Samsung TV's preprogramed NANDs. Bios too most of the time .... I think , I will take adaptation time on it. My TV's cemetery contains at least 20 TV sets i should reflash and good enough to go after.
Thanks for you help.Leave a comment:
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Re: Any convenient cheap programmer for TV chips ?
Ch341A is a USB stick with a 16 pins socket right ?
None of these 3 ones are doing at same time Nand and small BIOS at same time ? Nand and Emmc always needs specific programmer ?
Sorry my questions may looks silly, but i never handled programmers myself, even if in the casino company i was working on, it was very usual to re flash chips with new software especially for the slots and roulettes ....
Thanks for your answersLeave a comment:
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Re: Any convenient cheap programmer for TV chips ?
Hello,
Thank you for this , especially Samsung is fragile concerning ROMs and BIOS, that would be useless, what do you use ? You have some hint about it ?Leave a comment:
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Re: Any convenient cheap programmer for TV chips ?
Hello all
As i could see in this link [URL="https://www.banggood.com/TL866II-Plus-Universal-USB-MiniPro-USB-Programmer-for-15000IC-SPI-Flash-NAND-EEPROM-MCU-PIC-AVR-p-1354612.html?rmmds=search&cur_warehouse=CN"]Link to Banggood website to TL866II[/URL] TL866II is supporting NAND(and perhaps EMMC ?) as well, what is different to the previous link for the same product (I think) which does not claim to support it, unluckily this one is lacking of any adapters.Re: Any convenient cheap programmer for TV chipsLeave a comment:
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Re: Share and question about TV repair books
Hello all
That is just a kind of introduction, but not the most interesting part, everything is such style of experience in big details on that book, as i could read he made a concentration of a few previous e-book he wrote before focusing only on t-cons and panels, but i would like to find a specific e-book clearly speaking about mainboards as well, i don't know if he wrote one or anybody else.
I like such peoples who want to teach repairs and are having no...Leave a comment:
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