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Modelo A1502 / 2.6 GHz (Turbo Boost hasta 3.1 GHz) o 2.8 GHz (Turbo Boost hasta 3.3 GHz) procesador Intel Core i7 de doble núcleo con 4 MB de caché L3 compartida.

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Keyboard not working only works for 5 sec at boot up

Keyboard not working in MacBook Pro 13” mid 2014.

All reset keys works at when powering up.

Also when force turn off (shift+control+option) it works. It turns off the machine.

I Did the SMC, PRAM, and NVRAM.

Also did the Hardware Test (option+D). No issues shows.

Keyboard works for 5 seconds when powered up(at boot).

Setups I did.

1. Power Key presses

2. Pressed the caps lock(green light comes on) worked for 5 sec

3. Pressed the Space Bar at hardware test to connect Internet. Worked for 5 sec.

Contesta esta pregunta Yo también tengo este problema

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The trackpad on this model can cause strange issues with the keyboard (if it's unplugged for example, only the power button will work). We have seen a lot of the trackpads on 2014 13" models fail in strange ways, causing intermittent issues like this.

First thing to try is a test trackpad and trackpad cable to rule out this causing the problem. Worth checking the logic board beforehand, in case there are any obvious signs of liquid damage.

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Thank you

Yes, trackpad was causing a problem. My trackpad cable got broken when replacing battery. I thought keyboard will work but it didn’t. When I replace the trackpad cable everything went back to normal.

Fan not making loud noise and system is also back to its speed.

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Mohit Patel estará eternamente agradecido.
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