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MacBook Air Core i5 1.4 13 (Early 2014) problems
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7 years 5 months ago #5095 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
the board number is usually embossed on the PCB... not on a sticker. it will be on the visible side of the MLB when you remove the bottom lid
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7 years 5 months ago #5105 by Kawa
Embossed on the upper right corner, under the silkscreen etched on the PCB:
NYKS
34V-0
NM13
424T
21B
I kept the formatting as close as I could. Is this one you're looking for?
P.S. Thank you so far, for trying to help me.
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
reverendalc wrote: the board number is usually embossed on the PCB... not on a sticker. it will be on the visible side of the MLB when you remove the bottom lid
Embossed on the upper right corner, under the silkscreen etched on the PCB:
NYKS
34V-0
NM13
424T
21B
I kept the formatting as close as I could. Is this one you're looking for?
P.S. Thank you so far, for trying to help me.
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7 years 5 months ago #5106 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
you're on the right track, but the board number will be in the 820-XXXX format.
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7 years 5 months ago #5112 by Kawa
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
For the life of me, I couldn't find any other markings on it.reverendalc wrote: you're on the right track, but the board number will be in the 820-XXXX format.
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7 years 5 months ago - 7 years 5 months ago #5113 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
I can work with that I think. Can you send me a pic of the data?
Those numbers don't resolve and I've got a 2013 MBA which reads:
Also I can try to lookup board# by your serial
Those numbers don't resolve and I've got a 2013 MBA which reads:
Also I can try to lookup board# by your serial
Last edit: 7 years 5 months ago by reverendalc.
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7 years 5 months ago - 7 years 5 months ago #5115 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Remove the SSD / flash and the board number should be under there. If not there then look by the RF shield the number will be right under the your speaker wire plugs into on the MLB. Umm, you need to look at the solder mask, man. You need a good light and a magnifier would not go amiss. Below is what you are looking for:
If it's a 13" 2013 or 2014 it will be an 820-3437
If it's a 13" 2015 it will be 820-00165
If it's a 11.6" 2013 it will be 820-3435 (which is next to the CPU)
If it's a 13" 2012 it will be 820-3209 (which is by the RF shield)..... So on
The jiz looking shit on the boards is flux from rework. I got a shitload of board here so if I can be of any help with a read or whatever...
If it's a 13" 2013 or 2014 it will be an 820-3437
If it's a 13" 2015 it will be 820-00165
If it's a 11.6" 2013 it will be 820-3435 (which is next to the CPU)
If it's a 13" 2012 it will be 820-3209 (which is by the RF shield)..... So on
The jiz looking shit on the boards is flux from rework. I got a shitload of board here so if I can be of any help with a read or whatever...
Last edit: 7 years 5 months ago by G.Beard.
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7 years 5 months ago #5116 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
PS. Just search SSN in your hex editor and look at the serial number... IF it's rubbed off the MacBook base that is.
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7 years 5 months ago #5118 by Kawa
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
It was under the SSD.
820-3437-B
820-3437-B
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7 years 5 months ago - 7 years 5 months ago #5120 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
i am having trouble locating this bios (for free).
i will keep looking.
EDIT:
try this
i will keep looking.
EDIT:
try this
Last edit: 7 years 5 months ago by reverendalc.
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7 years 5 months ago #5121 by Kawa
Should I upload it as is, or change the serial number first?
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
reverendalc wrote: i am having trouble locating this bios (for free).
i will keep looking.
EDIT:
try this
Should I upload it as is, or change the serial number first?
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7 years 5 months ago #5122 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Slap your serial in if you want to lol
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7 years 5 months ago #5128 by Kawa
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Sadly, no dice. Still in the same condition. No sound, no screen, fan spinning up and 10 seconds later, down.
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7 years 5 months ago - 7 years 5 months ago #5129 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
You know that the 3437 boards will not turn on right away. It will go like this...
Fan spin, fan stop.
Fan spin, fan stop.
Fan spin, wait for it...... screen on, chime.
If that does not happen unplug battery, apply the MagSafe, hold down alt+cmd+P+R together. Watch the fan go 1, 2 ,3 times spin. Hold the key combo for a good while... Like 45 sec or so, maybe longer. Eventually you will have your screen kick in. If no screen kicky iny then get an optical mouse and plug to USB. Look at the light on the bottom of the mouse. Does it light up red?
Fan spin, fan stop.
Fan spin, fan stop.
Fan spin, wait for it...... screen on, chime.
If that does not happen unplug battery, apply the MagSafe, hold down alt+cmd+P+R together. Watch the fan go 1, 2 ,3 times spin. Hold the key combo for a good while... Like 45 sec or so, maybe longer. Eventually you will have your screen kick in. If no screen kicky iny then get an optical mouse and plug to USB. Look at the light on the bottom of the mouse. Does it light up red?
Last edit: 7 years 5 months ago by G.Beard.
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7 years 5 months ago #5133 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
I'm sure you've tried an SMC reset.
Have you tried cleaning the ME in that dump I uploaded?
Also, I've got so many threads I'm on, I can't recall... have you tried flashing back the original dump?
If so, did it power on?
Sorry, thanks
Have you tried cleaning the ME in that dump I uploaded?
Also, I've got so many threads I'm on, I can't recall... have you tried flashing back the original dump?
If so, did it power on?
Sorry, thanks
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7 years 5 months ago #5134 by Kawa
I cannot clean the ME region because the blog you referred to had dead links, fount the software to detect it, but it was buggy, couldn't make it to work. I tried to flash back the original dump, still nothing, also not sure if the original dump was read correctly. Tried SMC reset, no dice.
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
reverendalc wrote: I'm sure you've tried an SMC reset.
Have you tried cleaning the ME in that dump I uploaded?
Also, I've got so many threads I'm on, I can't recall... have you tried flashing back the original dump?
If so, did it power on?
Sorry, thanks
I cannot clean the ME region because the blog you referred to had dead links, fount the software to detect it, but it was buggy, couldn't make it to work. I tried to flash back the original dump, still nothing, also not sure if the original dump was read correctly. Tried SMC reset, no dice.
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7 years 5 months ago #5136 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Here this is working MEA
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7 years 5 months ago #5137 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Here is working MEA. I had same issue but found this. Drag dump into MEA application type -skip
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7 years 5 months ago #5138 by reverendalc
Replied by reverendalc on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Thanks for uploading that. I will have to fix the blog links.
I found that dump in the forums here. Allegedly working with forum corroboration.
If cleaning the ME on that and flashing doesn't work, I may start to look more closely at your equipment setup and your MacBook hardware.
Have you successfully performed this work on other MacBooks with your current equipment?
I found that dump in the forums here. Allegedly working with forum corroboration.
If cleaning the ME on that and flashing doesn't work, I may start to look more closely at your equipment setup and your MacBook hardware.
Have you successfully performed this work on other MacBooks with your current equipment?
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7 years 5 months ago - 7 years 5 months ago #5166 by Kawa
Replied by Kawa on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
Firmware: Intel ME
Version: 9.5.3.1526
Release: Production
Type: Region, Extracted
FD: Locked
SKU: 1.5MB Apple Mac
VCN: 2
PV: Yes
Date: 10/05/2013
FITC Ver: 9.5.3.1526
Platform: Mobile
Latest: No
This is the output from the bin uploaded by reverenalc, the same exact output as from my original dump. Now the question is, from that list with clean ME regions, which one should I choose, because there is no exact match.
Thanks guys, so far.
Version: 9.5.3.1526
Release: Production
Type: Region, Extracted
FD: Locked
SKU: 1.5MB Apple Mac
VCN: 2
PV: Yes
Date: 10/05/2013
FITC Ver: 9.5.3.1526
Platform: Mobile
Latest: No
This is the output from the bin uploaded by reverenalc, the same exact output as from my original dump. Now the question is, from that list with clean ME regions, which one should I choose, because there is no exact match.
Thanks guys, so far.
Last edit: 7 years 5 months ago by Kawa.
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7 years 5 months ago #5167 by G.Beard
Replied by G.Beard on topic MacBook Air Core i5 1.4 13 (Early 2014) problems
The following user(s) said Thank You: Kawa
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