REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 8 April 2020

REPROGRAMMING BIOS IC USING EEPROM PROGRAMMER

  Modern motherboards of Laptop have 3 kind of Bios
1, Main Bios bios is that we usually find in general the motherboard to control the basic input output system on SB/NB/VGA Instrumental in setting chipsets (ICH-PCH-SB-NB) ... Bios Bug can cause the chipset can not function properly.This firmware managed all chip interface communication.

2. EC Bios (embedded controller bios). EC firmware bios related to the main bios and save settings for embedded controller chip .This firmware managed all power signal management include GPIO/SM_BUS/Keyboard controller including sistem switching signal,password security controller (see datasheet for more detil EC Fiture)

3.ID Bios which only store data to determine information about motherboard ID.



 Bios IC has a ROM to save EC Bios firmware for SIO/EC microcontroler management.This work like a computer inside the IC's. SIO managed all signal,stepping sleep state,thermocontroler ,protecting error etc.(get the detil info download the Datasheet)
Even whole component onboard ok and power well will stop working if EC Bios Firmware damage .
To check Firmware ok ,there is a signal tes confirmation on EC/SIO pin name RSMRST# .This pin must available 3.3V(tolerance 10%) than Bios Confirmed OK.
Check the power need also Bios IC and SIO need 3.3V powered VCC for working well

 BIOS IC

There are several  physical model of Bios IC ,they marked by amount of soket pin .
new motherboard model usually use SO 8 Bios IC ,there 2 kind of SO 8 marked by size 200ml and 150ml



Bios IC have several capacity : 256MB~512MB~1MB~2MB~4MB ~8MB and 16MB.
SO 8 BIOS IC .






                                                                TSOP 28 BIOS IC












TSOP 32 BIOS IC


Persistent BIOS infection

"Persistent BIOS infection", is a method presented in CanSecWest Security Conference (Vancouver, 2009) and SyScan Security Conference (Singapore, 2009) where researchers Anibal Sacco and Alfredo Ortega, from Core Security Technologies, shows error code insertion into the decompression routines in the BIOS , allowing for nearly full control of the PC in any start-up, even before the operating system boot.

 Proof-of-concept does not exploit a flaw in the BIOS implementation, but only involves the normal BIOS flash procedure. Thus, it requires physical access to the machine or to the user in the operating system to be root. Despite this, however, researchers underline the profound implications of their discovery: "We can patch the driver to make a fully working rootkit. Has even a small code that can remove or disable antivirus in bios rom.

 Changing bios chip / reprograming / erase / backup / updated biosAfter understanding the bios chip , functions and how it works can be understood if the bios corupted / crashes or there is a bug / virus / data error in bios , can cause the entire motherboard or partly paralyzed  can not work ( totally dead ) .EC bios that can still boot up go into bios settup / hank on logo or are still able to get into windows enough to just do an upgrade on latter bios version .
Download programe run the exe file , follow the next command in the updater program that has running don't forget to ensure battery and adapter attached . Low  power  while updating process updated bios will fail .Can not go in / boot windows , updating bios can do  by booting through dos  bootable flashdisk. Several different way   on each different brand and series .example for acer aspire one boot bios updated by using the fn + esc key , Compaq laptop using windows key + B and toshiba laptop using ctrl + U key .If the updater fails on both the above methods , flashing with erase / delete the data and replace the old bios / flashing new data or if the bios chip using  Bios eeprom programmer.

 

Reprogramming Bios IC using EEprom Programmer


 HOW TO USE EEPROM PROGRAMMER
 
 


EZP2010 high-speed programmer manual 
1. Verify error.
(1)User must select a correct chip modle before writting.
(2)User must erase chip before writting if che chip is a 25 flash.
(3)User must select a correct memory unit width if che chip is a 93 eeprom.
(4)The chip maybe bad.
2. Chip position when reading and writting.
(1)If the programmer is linked to PC, the chip must be placed in the socket as below:
 
3. Automatically detect chip modle unsuccessful.
See the section "detect chip" in this document.
4. The simple SMD socket.
The simple SMD socket has tow chip positions.
User can place SMD chip on any one of the tow position.
White spot mark as pin 1 on chip 
 
 
5. Read and write chips on the mainboard (ISP).
User can link programmer to mainboard to read and write bios chips.
User can link GND, CS, MISO, MOSI, CLK signals to mainboard.

6.Detect chip ~Read~Erase~Reprogram~verify 
 












24, 25, 93 series memory chips (BIOS IC)List
25  SPI  FLASH*******************************************************************
AMIC: A25L05P, A25L512, A25L010, A25L10P, A25L020, A25L20P, A25L040, A25L40P, A25L080, A25L80P, A25L016, A25L16P, A25L032ATMEL: AT25F512, AT25F512A, AT25F512B, AT25F1024, AT25F1024A, AT25FS010, AT25DF021, AT25F2048, AT25DF041A, AT25F4096, AT25FS040, AT26F004, AT26DF081A, AT25DF161, AT26DF161, AT26DF161A, AT25DF321, AT25DF321A, AT26DF321, AT25DF641EON: EN25F05, EN25LF05, EN25P05, EN25D10, EN25F10, EN25LF10, EN25P10, EN25D20, EN25F20, EN25LF20, EN25D40, EN25F40, EN25LF40, EN25D80, EN25F80, EN25Q80, EN25T80, EN25B16, EN25B16T, EN25D16, EN25F16, EN25Q16, EN25T16, EN25B32, EN25B32T, EN25F32, EN25P32, EN25Q32, EN25B64, EN25B64T, EN25F64, EN25P64, EN25Q64, EN25F128, EN25Q128ES: ES25P10, ES25P20, ES25M40, ES25M40A, ES25P40, ES25M80, ES25M80A, ES25P80, ES25M16, ES25M16A, ES25P16, ES25P32ESMT: F25L004A, F25L04UA, F25L008A, F25L08PA, F25L016A, F25L16PA, F25L32PA, F25L32QAMXIC: MX25L512, MX25V512, MX25L1005, MX25L2005, MX25L4005A, MX25V4005, MX25L8005, MX25V8005, MX25L1605D, MX25L1635D, MX25L3205D, MX25L3225D, MX25L3235D, MX25L3237D, MX25L6405D, MX25L12805DNEXFLASH: NX25P10, NX25P20, NX25P40, NX25P80, NX25P16, NX25P32PMC: PM25LV512A, PM25LV010A, PM25LV020, PM25LV040, PM25LV080B, PM25LV016BSAIFUN: SA25F005, SA25F010, SA25F020, SA25F040, SA25F080, SA25F160, SA25F320SPANSION: S25FL004A, S25FL008A, S25FL016A, S25FL032A, S25FL064ASST: SST25VF512, SST25VF512A, SST25VF010, SST25VF010A, SST25VF020, SST25VF020A, SST25VF040, SST25VF040A, SST25VF040B, SST25VF080B, SST25VF016B, SST25VF032B, SST25VF064CST: M25P05A, M25P10A, M25PE10, M25P20, M25PE20, M25P40, M25PE40, M25P80, M25PE80, M25PX80, M25P16, M25PE16, M25PX16, M25P32, M25PX32, M25P64, M25PX64, M25P128WINBOND: W25P10, W25X10, W25X10A, W25X10AL, W25X10L, W25P20, W25X20, W25X20A, W25X20AL, W25X20L, W25P40, W25X40, W25X40A, W25X40AL, W25X40L, W25P80, W25X80, W25X80A, W25X80AL, W25X80L, W25P16, W25X16, W25P32, W25X32, W25X64
********************24  EEPROM*******************************************************************
ATMEL: AT24C01, AT24C01A, AT24C01B, AT24C02, AT24C02A, AT24C02B, AT24C04, AT24C04A, AT24C04B, AT24C08, AT24C08A, AT24C08B, AT24C16, AT24C16A, AT24C16B, AT24C32, AT24C32A, AT24C32B, AT24C64, AT24C64A, AT24C64B, AT24C128, AT24C128A, AT24C128B, AT24C256, AT24C256A, AT24C256B, AT24C512, AT24C512A, AT24C512B, AT24C1024, AT24C1024A, AT24C1024B
CATALYST: CAT24C01, CAT24WC01, CAT24C02, CAT24WC02, CAT24C04, CAT24WC04, CAT24C08, CAT24WC08, CAT24C16, CAT24WC16, CAT24C32, CAT24WC32, CAT24C64, CAT24WC64, CAT24C128, CAT24WC128, CAT24C256, CAT24WC256, CAT24C512, CAT24WC512, CAT24C1024, CAT24WC1024
COMMON: 24C00 3V, 24C00 5V, 24C01 3V, 24C01 5V, 24C02 3V, 24C02 5V, 24C04 3V, 24C04 5V, 24C08 3V, 24C08 5V, 24C16 3V, 24C16 5V, 24C32 3V, 24C32 5V, 24C64 3V, 24C64 5V, 24C128 3V, 24C128 5V, 24C256 3V, 24C256 5V, 24C512 3V, 24C512 5V, 24C1024 3V, 24C1024 5V
FAIRCHILD: FM24C01L, FM24C02L, FM24C03L, FM24C04L, FM24C05L, FM24C08L, FM24C09L, FM24C16L, FM24C17L, FM24C32L, FM24C64L, FM24C128L, FM24C256L, FM24C512L, FM24C1024L
HOLTEK: HT24C01, HT24LC01, HT24C02, HT24LC02, HT24C04, HT24LC04, HT24C08, HT24LC08, HT24C16, HT24LC16, HT24C32, HT24LC32, HT24C64, HT24LC64, HT24C128, HT24LC128, HT24C256, HT24LC256, HT24C512, HT24C1024
ISSI: IS24C01, IS24C02, IS24C04, IS24C08, IS24C16, IS24C32, IS24C64, IS24C128, IS24C256, IS24C512, IS24C1024
MICROCHIP: 24AA00, 24C00, 24LC00, 24AA01, 24AA014, 24C01C, 24LC014, 24LC01B, 24AA02, 24LC02B, 24AA024, 24AA025, 24AA04, 24C02C, 24LC024, 24LC025, 24LC04B, 24AA08, 24LC08B, 24AA16, 24LC16B, 24AA32, 24LC32, 24AA64, 24FC64, 24LC64, 24AA128, 24FC128, 24LC128, 24AA256, 24FC256, 24LC256, 24AA512, 24FC512, 24LC512, 24AA1024
NSC: NSC24C02, NSC24C02L, NSC24C64
RAMTRON: FM24C04A, FM24CL04, FM24C16A, FM24CL16, FM24C64, FM24CL64, FM24C256, FM24CL256, FM24C512
ROHM: BR24C01, BR24L01, BR24C02, BR24L02, BR24C04, BR24L04, BR24C08, BR24L08, BR24C16, BR24L16, BR24C32, BR24L32, BR24C64, BR24L64
ST: ST24C01, ST24C02, ST24C04, ST24C08, ST24C16, ST24C32, ST24C64
XICOR: X24C01, X24C02, X24C04, X24C08, X24C16
********************93  EEPROM*******************************************************************
AKM: AK93C45AV, AK93C55AV, AK93C65AV, AK93C75AV
ATC: ATC93C46, ATC93LC46(16bit), ATC93LC46(16bit)-SOP8, ATC93LC46(8bit), ATC93LC46(8bit)-SOP8, ATC93C56, ATC93LC56(16bit), ATC93LC56(16bit)-SOP8, ATC93LC56(8bit), ATC93LC56(8bit)-SOP8, ATC93C66, ATC93LC66(16bit), ATC93LC66(16bit)-SOP8, ATC93LC66(8bit), ATC93LC66(8bit)-SOP8
ATMEL: AT93C46(16bit), AT93C46(16bit)-SOP8, AT93C46(8bit), AT93C46(8bit)-SOP8, AT93C46A, AT93C56(16bit), AT93C56(16bit)-SOP8, AT93C56(8bit), AT93C56(8bit)-SOP8, AT93C57(16bit), AT93C57(16bit)-SOP8, AT93C57(8bit), AT93C57(8bit)-SOP8, AT93C66(16bit), AT93C66(16bit)-SOP8, AT93C66(8bit), AT93C66(8bit)-SOP8, AT93C86(16bit), AT93C86(16bit)-SOP8, AT93C86(8bit), AT93C86(8bit)-SOP8
CATALYST: CAT93C46(16bit), CAT93C46(8bit), CAT93C46A, CAT93C46I, CAT93C56(16bit), CAT93C56(8bit), CAT93C56A, CAT93C57(16bit), CAT93C57(16bit)-SOP8, CAT93C66(16bit), CAT93C66(8bit), CAT93C66A, CAT93C86(16bit), CAT93C86(8bit)
COMMON: 93C46(16bit), 93C46(8bit), 93C56(16bit), 93C56(8bit), 93C66(16bit), 93C66(8bit), 93C86(16bit), 93C86(8bit)
EXEL: XL93C06, XL93C46, XL93CS46, XL93LC46, XL93C56, XL93LC56, XL93C66, XL93LC66
FAIRCHILD: FM93C06AM8(16bit), FM93C06AM8(8bit), FM93C06M8, FM93C06N, FM93C46AM8(16bit), FM93C46AM8(8bit), FM93C46AN(16bit), FM93C46AN(8bit), FM93CS46(16bit), FM93C56AN(16bit), FM93C56AN(8bit), FM93CS56(16bit), FM93C66AM8(16bit), FM93C66AM8(8bit), FM93C66AN(16bit), FM93C66AN(8bit), FM93C66B, FM93C66M8(16bit), FM93C66MT8(16bit), FM93C66N(16bit), FM93CS66(16bit), FM93C86AM8(16bit), FM93C86AM8(8bit), FM93C86AN(16bit), FM93C86AN(8bit)
HOLTEK: HT93LC46A(16bit), HT93LC46A(8bit), HT93LC56A(16bit), HT93LC56A(8bit), HT93LC66A(16bit), HT93LC66A(8bit)
ICT: ICT93C46(16bit), ICT93C46(8bit), ICT93C56(16bit), ICT93C56(8bit), ICT93C66(16bit), ICT93C66(8bit)
ISSI: IS93C46(16bit), IS93C56(16bit), IS93C66(16bit)
MICROCHIP: 93C06(16bit), 93C06(16bit)-SOP8, 93AA46(16bit), 93AA46(8bit), 93AA46(8bit)-SOP8, 93C46(16bit), 93C46(16bit)-SOP8, 93C46A, 93C46B, 93LC46(16bit), 93LC46(16bit)-SOP8, 93LC46(8bit), 93LC46(8bit)-SOP8, 93LC46A, 93LC46B, 93LC46B-SOP8, 93AA56(16bit), 93AA56(8bit), 93AA56(8bit)-SOP8, 93C56(16bit), 93C56(16bit)-SOP8, 93C56(8bit), 93C56(8bit)-SOP8, 93C56A, 93C56A-SOP8, 93C56B, 93C56B-SOP8, 93LC56(16bit), 93LC56(16bit)-SOP8, 93LC56(8bit), 93LC56(8bit)-SOP8, 93LC56A, 93LC56B, 93LC56B-SOP8, 93AA66(16bit), 93AA66(8bit), 93AA66(8bit)-SOP8, 93C66(16bit), 93C66(16bit)-SOP8, 93C66(8bit), 93C66(8bit)-SOP8, 93C66A, 93C66A-SOP8, 93C66B, 93C66B-SOP8, 93LC66(16bit), 93LC66(16bit)-SOP8, 93LC66(8bit), 93LC66(8bit)-SOP8, 93LC66A, 93LC66B, 93LC66B-SOP8, 93AA76(16bit), 93AA76(8bit), 93C76(16bit), 93C76(8bit), 93LC76(16bit), 93LC76(8bit), 93LC76A, 93LC76B, 93AA86(16bit), 93AA86(8bit), 93C86(16bit), 93C86(8bit), 93LC86(16bit), 93LC86(8bit), 93LC86A, 93LC86BNSC: NSC93C06, NSC93C06-SOP8, NSC93CS06, NSC93C46, NSC93CS46, NSC93C56, NSC93CS56, NSC93S56, NSC93C66, NSC93CS66, NSC93C86
ROHM: BR93LC46, BR93LC46RF, BR93LC56, BR93LC56RF, BR93LC66, BR93LC66RF
ST: ST93C06, M93S46, M93S46-SOP8, M93S46-T8, M93S46R, M93S46R-SOP8, M93S46W, M93S46W-SOP8, ST93C46, M93S56, M93S56-SOP8, M93S56R, M93S56R-SOP8, M93S56W, M93S56W-SOP8, ST93C56, M93S66, M93S66-SOP8, M93S66R, M93S66R-SOP8, M93S66W, M93S66W-SOP8, ST93C66
********************25  EEPROM*******************************************************************
ATMEL: AT25010, AT25020, AT25040, AT25080, AT25160, AT25320, AT25640, AT25128, AT25256, AT25512
CATALYST: CAT25C01, CAT25C01P, CAT25C01S, CAT25C01U, CAT25C02P, CAT25C02S, CAT25C02U, CAT25C03P, CAT25C03S, CAT25C03U, CAT25C04P, CAT25C04S, CAT25C04U, CAT25C05P, CAT25C05S, CAT25C05U, CAT25C08P, CAT25C08S, CAT25C08U, CAT25C09P, CAT25C09S, CAT25C09U, CAT25C16P, CAT25C16S, CAT25C16U, CAT25C17P, CAT25C17S, CAT25C17U, CAT25C32P, CAT25C32S, CAT25C33P, CAT25C33S, CAT25C64P, CAT25C64S, CAT25C65P, CAT25C65S, CAT25C128P, CAT25C128S, CAT25C256P, CAT25C256S
COMMON: 25010, 25020, 25040, 25080, 25160, 25320, 25640, 25128, 25256, 25512
MICROCHIP: 25AA040, 25C040, 25LC040, 25AA080, 25C080, 25LC080, 25AA160, 25C160, 25LC160, 25AA320, 25C320, 25LC320, 25AA640, 25C640, 25LC640
RAMTRON: FM25C160, FM25640, FM25CL64
ST: ST25C01, ST25W01, ST25C02, ST25W02, ST25C04, ST25W04, ST25C08, ST25W08, ST25C16, ST25W16
TI: TI2532, TI2532A, TI2564
XICOR: XC25010, XC25020, XC25040, XC25080, XC25160, XC25320, XC25640, XC25128, XC25256, XC25512
Posted By: FRANK at 08:25
TAG: , , ,