12 Jul Introduction. Ever wonder how your laptop battery knows when to stop charging when it is plugged into the wall, but the computer is powered. 5 Oct battery there are 2 TI chips of types BQDBT and BQ the Lenovo power management software shows “SANYO” in the manufacture. Texas Instruments BQDBT. Check pricing, availability, lifecycles and datasheets at Ciiva.
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The only available bqdbt me are v or v any concern? Viktor November 25, at TI is a global semiconductor design and manufacturing company.
I have checked all the fuses and they are OK. The sense resistor is shared across the gas gauge chip and the overcurrent protection chip and is 0. Maybe someone knows smbus command to unlock charge? You’ll find it if you keep trying. I could include it here, if anyone can help determine how to reset this thing from what was essentially, a power-down mode.
Below is pictures of my actual battery, disassembled. No, create an account now. I recharged the original cells externally and cleared the fail condition, no re-celling. Did you build the latest commit or the release? And I have a question, how do you able to get a software from Bq before disassembling a code?
BQDBT Texas Instruments | Ciiva
If you did a full erase it should default to the boot-rom. Enabling Battery backup for Amtel microcontroller Posted by harisudharsan in forum: I need realy working advise because I am going to buy 24h license to “fix” my 2 or 3 batteries. Mentions Tags More Cancel. The wiring was simple enough Hello how are you. Help customers find the non-standard products.
Jun 4, 6. X December 12, at 5: Yes, my password is: When the first instruction is a NOP I’m guessing the chip thinks it’s blank and enters the boot-rom. I was pretty much joking about the the conspiracy stuff ;- If anything it’s way more likely that cycles is about where this whole bank-switching business catches up with the amount of cleverness they had to put into the firmware to make this pack work.
As mentioned in the previous article the bq is the blank version of the bq20z Got it to communicate. Shenzhen Di Qi Electronics Co.
What I need to know is, if anyone is still reading this thread, do you still need the original metalic frame that seems to have been spot welded to the original cells?
I don’t remember much about it so YMMV but here it is: In order to ensure that the “solution” will work on minimum 2 of them I have to be ready with my homework. All content and materials on this site are provided “as is”. MaikkySep 1,in forum: Question 2 is not clear to me. Default unseal key found on TI support page seems to be changed by pack manufacturer.
I found in the datasheet for bq20zxx small quantity of information about this kind of reset, and even dedicated counter in the dinamic eeprom field allotted for this. Is it even possible to write a new firmware to these chips so they will accept to work again?
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The laptop can see the battery just fine, and read all its info, but it doesnt want to charge it. In that case you’d probably have to try the pin28 glitching method I described in the post to get into the boot-rom first.
The fuse was a guess based on the battery reading zero. Thanks to anyone in advance who might be able to shed some light on my problem. BomBa August 26, at If you rub your hand against the brick, don’t ’round’ the corner to get to the next side, stop just after the corner, move your body to the other side of the building with a few steps, then continue moving your hand in a straight line in THAT new direction – so you’ve going in a nice clean geometric ‘L’ shape.
M F a SO Viktor November 27, at 1: Can you share your eeprom dump?