i checked u 15 and it is okay because i have found 3.3v on I2C pins(5,6) as well as pin 8 and i have copied and pasted the dump on BIOS FORUM
so you believe copying the eeprom file from a working laptop will solve my problem? what kind of laptop; same brand or model or any other laptop which has same configuration?
For the dell laptop i returned it to the customer because i gave up after failing three times up until this lenovo came.
however i want to testify that TPS65994AD/AE has two form factor : QFN (48) and BGA (50 pins), the QFN model doesn't...
facta
Member
Last Activity: 04-23-2025, 04:04 AM
Joined: 08-12-2018
Location: blantyre
-
LENOVO THINKBOOK G4 USB C EEPROM
I have lenovo thinkbook 15 g4 PN: LA-L931P REV:1A with TPS65994AE (bga) can't negotiate 20v contract but can turn on with a charged battery; can anyone help with a working firmware for the eeprom (U15) or guide on how to create one through TI customization tool. i have attached my original eeprom in case it could help.... -
well explained and now it is making sense to me using the example provided.
i can confirm that i have u15 properly soldered and am yet to check the status but i believe it is okay and i have downloaded TI customization tool just to get familiar with the interface as shown below.
my next question is which programmer do i use to program this eeprom via I2C bus? i only have CH341A Mini Programmer for the bios and would like to know if this is compatible? lastly is the Dump inside the eeprom useful in anyway during the process of build the configuration file?
the attached...Leave a comment:
-
hello GUYS, i would like to ask about TPS65994AD/AE PD controller recently it is becoming a common problem on Type-c connectors. does this require programming before installation or if yes how do we program it. i have several of these new chips from different suppliers but none worked on several models of laptop where they will turn on from a charged battery but fail to power from charger or negotiate 20v . please help.Leave a comment:
-
thanks works fine...Leave a comment:
-
Please I need help with this HP laptop
After updating BIOS they have been left with a black screen.
Model: HP 15-bs105ni
SN: CND81359J3
ProdID: 3DK66EA#ACQ
Motherboard: DKL50 LA-E802P Rev: 1.0
...Leave a comment:
-
Re: Lenovo Legion Y540 EC PROGRAMMING
we have ebay access however, i have not find a preprogramed one. secondly we have computer repairs shops but no one does this ec programming because the programmers are expensive. one last thing i don't know if you are aware of this implementation on this laptop model, you can not programmed the ec while soldered on the board because the keyboard isn't directly connected to the ec but rather connected to another ITE controller chip. the only way to programme this ec is through an adapter while disoldered and solder it back after programming...Leave a comment:
-
Lenovo Legion Y540 EC PROGRAMMING
hello guys i don't have SIO programmer and i can't afford one right now therefore need someone with reasonable price to help me by programming an EC IT8226E-128 for
device: Laptop
brand: Lenovo
model:Legion Y540 17IRH
board number:NM C531 FY710 FY714 Rev2 -
Re: Dell Latitude 5520 Bios Password unlock
hello guys, last week i posted to ask for bios clearance on my dell 5420 and i was assisted perfectly because the dump was unlocked however the laptop bios is able to see my ssd but windows is failing to detect it so that i should load OS.
please advise any solution....Leave a comment:
-
Re: Dell Latitude 5520 Bios Password unlock
thank you, let me test it and give you feedbackLeave a comment:
-
Re: need bios dump dell latitude 5420 (cpu 11th)
Hi all.
Please can you help me with clear admin password from BIOS ON Dell latitude 5420 GDF40 LA-K491P .
Thanks so much.Last edited by SMDFlea; 04-02-2023, 01:30 PM.Leave a comment:
-
Re: New Members - please post your introductions here
hi, am HILARY FROM MALAWI
I' ve been doing repairs for 5 years now and since i discovered this forum everything is way easier. I am happy that this exists and i would, with great pleasure, contribute with whatever i can.Leave a comment:
-
Re: Dell Latitude 5520 Bios Password unlock
Hi all.
Please can you help me with clear admin password from BIOS ON Dell latitude 5420 GDF40 LA-K491P .
Thanks so much.Last edited by SMDFlea; 03-19-2023, 12:07 PM.Leave a comment:
No activity results to display
Leave a comment: