Yes. Waiting on the purple board. No idea why it got stuck and the adapter didn't.
Will order the other adapter later.
Was hoping to make it work today. lol
Shit happens....
BMCappelletti
Senior Member
Last Activity: Today, 08:42 AM
Joined: 11-04-2021
Location: Porto Alegre - RS
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Got the zero force socket yesterday. The pruple board, for some reason, is stuck on customs.
Opened the Mac again and... my chip is 4x3.
Also Winbond W25Q80DVUXIE, even though that's what's on the schematic, is smaller than the one on the board, with those marks mentioned.
Oh boy....Leave a comment:
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Yes, all the dumps from that U301 device are also here. That would not be an issue.
I'll get both the 2x3 and 4x3 adapters. And the purple board. Along with a couple chips.
Thanx a lot....Leave a comment:
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Hi. Got a time to check your sources?
As I said, schematic for 820-02016 shows W25Q80DVUXIE and chip itself has
X-5H727
500A1
MX25
U6472F
I guess the chip is fine and maybe I can get around it with just a reflash, but I don't mind buying a couple other ones to have spares....Leave a comment:
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Well, now I'm lost on which one I need to buy. Searching for that last one on Ali shows me nothing....Leave a comment:
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As for the chip, the one on the schematic is W25Q80DVUXIE.
On the chip itself the markings are:
X-5H727
500A1
MX25
U6472F
So I guess this is the correct one? [url]https://pt.aliexpress.com/item/1005008148911606.html[/url]https://As for the chip, the one on ...606.html[/url]Leave a comment:
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Awesome. Thanx a lot.
Will buy and test it. Will post a reply on about three weeks....Leave a comment:
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Yes, I've seen his video, using the U301 device.
Could you link me the Aliexpress one you are mentioning? I have a couple of tabs open here but want to make sure I get the correct one. I have the 1.8V adapter to use on my EZ2019, so I guess I just need the adapter....Leave a comment:
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Any other idea on what I could try next?
Is it worth trying to rewrite UF260 with the bin files that one can find here? If so, I need to buy an adapter to my EZ2019, cause that seems to be a USON 2x3 chip.
Thank you.Leave a comment:
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Yes, everything the same. Ecxpt for the USBC1_CC1 is now zero and CC2 is now 1.6V.
PPVBUS_USBC0 still zero....Leave a comment:
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Charger conneced to the top port.
PPVBUS_USBC0 - 0V
PP3V3_UPC0_LDO - 3.3V
USBC1_CC1 - 1.6V
USBC1_CC2 - 0V
PPVBUS_USBC1 - 5.1V
PPDCIN_AONSW - 5.1V
PP3V3_UPC1_LDO - 3.3V
I2C_SMC_UPC_SCL - 1.2V
I2C_SMC_UPC_SDA - 1.2V
I2C_UPC_SCL - 1.2v
I2C_UPC_SDA - 1.2v
I2C_SMC_PWR_SDA - 1.2v
I2C_SMC_PWR_SCL - 1.2v...Leave a comment:
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P5VS2_PWR_EN is 0V
RC333 has 0.019V (stable, if that counts) on P5VS2_EN and 0V on P5VS2_PWR_EN....Leave a comment:
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Macbook Air M1 A2337 Stuck At 5V
Hi everyone.
Found some topics here for the same issue, on the same board, but none with all the same values I have or same steps to correct it. And I could not get usefull information from it.
So... M1, board 820-02016-A, stuck at 5V. Current is 0.08A and from time to time it jumps to 0.13A and back.
I measured:
L5230 - 5.1V
LC320 - 0V (no short)
LP800 - 0V (no short)
L5840/5820/5800 - 3.8V
F5200 - 12.29V (according to an entry on repair.wiki "If the voltage is approximately 12.28-12.35V, it may indicate a communication issue between... -
So I was not that wrong.
Thanx for confirmg it....Leave a comment:
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I thought ME region would be something only on Intel CPUs, for some reason.
Anyway... a friend wanted the screen to replace on another device. He ended up buying me the whole thing. So I don't have it anymore.
Thanx anyway....Leave a comment:
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It's AMD....Leave a comment:
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I tried without it. No luck. Same behaviour.
What I found odd is that it does not boot from any device, even though I used the extracted BIOS from the Lenovo website.
That tells me that something else is wrong on the laptop and preventing the laptop to see that those devices are bootable. Or preventing to use them for that, because they show just fine in BIOS....Leave a comment:
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I'm back to the original "To interrupt normal startup, press Enter" screen, after writing the BIOS again using CH431 device and the .bin file extracted from the Lenovo installer.
So it does not seem to be a BIOS issue after all.
I'm attaching the original BIOS here, if someone want to take a look.Leave a comment:
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I had already a programmer. A EZP2019+, but I didn't have the adapter for SOP8. I got it, but EZP software was not able to detect the BIOS chip. It's a Winbond 74M25JWEIQ. I was able to read the chip and write a new one selecting W25Q256 chip model. But the new file (and the original one) is not working. I only get a fan spin (and then stop) and a steady white light around the power button. It does not boot.
So either I have a problema with the BIOS chip or the programmer I have is not suitable for this....Leave a comment:
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