iPhone 7+ Help locating part - GSM-Forum

short_toground · 03-02-2018, 17:53

Can someone help me locate Y5501_RF in 7+ 820-00249. Im not seeing it in boardview for some reason

Phone was driven over and boot loops with error 4013. Trying to troubleshoot baseband issue and want to try replacing the crystal as there are no shorts and already tried new bb PMU

CDMA_RASHID · 03-02-2018, 19:02

Can you Mention what revision MotherBoard you have?

short_toground · 03-02-2018, 19:03

Yes I did in original post it’s 820-00249

CDMA_RASHID · 03-02-2018, 19:11

Oh My Bad.

really sorry about that.

will locate that part for you once i am at my lab.

short_toground · 03-02-2018, 22:39

Cool thanks. Have you seen this before?

When I measure some bb voltages they’re only In the mv range. Would this point to a bb cpu issue or something else

short_toground · 03-03-2018, 17:38

Quote:

Originally Posted by CDMA_RASHID

Oh My Bad.

really sorry about that.

will locate that part for you once i am at my lab.

Were you able to locate it?

ninos22 · 03-03-2018, 23:10

Quote:

Originally Posted by short_toground

Can someone help me locate Y5501_RF in 7+ 820-00249. Im not seeing it in boardview for some reason

Phone was driven over and boot loops with error 4013. Trying to troubleshoot baseband issue and want to try replacing the crystal as there are no shorts and already tried new bb PMU

I think only 820-00229-10 contains Y5501_RF

short_toground · 03-03-2018, 23:24

That’s weird. So the Intel version doesn’t require an oscillator for the bbpmu?

Btw in the 820-00249 schematic (not boardview) it shows Y5501_RF

ninos22 · 03-04-2018, 00:08

Quote:

Originally Posted by short_toground

That’s weird. So the Intel version doesn’t require an oscillator for the bbpmu?

Btw in the 820-00249 schematic (not boardview) it shows Y5501_RF

As you can see in second picture (820-00229-10) Y5501_RF there is exactly next to the baseband PMIC/power management IC (BBPMU_RF).

I have 820-00229 schematic and shows Y5501_RF, but on board view (1st picture) - (probably 820-00249) not shows this part.

Slydder · 11-15-2018, 12:00

does anyone here have boardview and schematics for the 00249 that I can get. or point me in the direction of where I can get them? 00229 I have but not 00249. Thanks

03-02-2018, 17:53	#1 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	iPhone 7+ Help locating part Can someone help me locate Y5501_RF in 7+ 820-00249. Im not seeing it in boardview for some reason Phone was driven over and boot loops with error 4013. Trying to troubleshoot baseband issue and want to try replacing the crystal as there are no shorts and already tried new bb PMU

03-02-2018, 19:02	#2 (permalink)
CDMA_RASHID No Life Poster Join Date: Jul 2008 Location: Mumbai Age: 36 Posts: 1,023 Member: 821646 Status: Offline Thanks Meter: 507	Can you Mention what revision MotherBoard you have?

03-02-2018, 19:03	#3 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	Yes I did in original post it’s 820-00249

03-02-2018, 19:11	#4 (permalink)
CDMA_RASHID No Life Poster Join Date: Jul 2008 Location: Mumbai Age: 36 Posts: 1,023 Member: 821646 Status: Offline Thanks Meter: 507	Oh My Bad. really sorry about that. will locate that part for you once i am at my lab.

03-02-2018, 22:39	#5 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	Cool thanks. Have you seen this before? When I measure some bb voltages they’re only In the mv range. Would this point to a bb cpu issue or something else

03-03-2018, 23:24	#8 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	That’s weird. So the Intel version doesn’t require an oscillator for the bbpmu? Btw in the 820-00249 schematic (not boardview) it shows Y5501_RF

11-15-2018, 12:00	#10 (permalink)
Slydder Junior Member Join Date: Jun 2017 Posts: 5 Member: 2730003 Status: Offline Thanks Meter: 0	does anyone here have boardview and schematics for the 00249 that I can get. or point me in the direction of where I can get them? 00229 I have but not 00249. Thanks