As Mateo said, replacing the zif cable is NOT easy, and in this case, will leave you with a computer that won't power on- this cable connects the power button. I learned a trick somewhere for dealing with these cables- put a piece of good sticky tape on the cable, and use it to pull it back into the connector. Works every time.
I am confirming from experience and also a discussion in the ifixit answers section (MacBook 5.1 temperature sensor missing?) that not all (few in my experience) 2009 macbook 5.2s have anything connected to the TEMP J5550 connector at the seven oclock position in relation to the fan. It is simply empty.
When I did this the ribbon cable beneath the plate stuck to the plate, and this guide makes no mention of this cable at all. Be aware that it has to be re routed and re attached to its positions on the logic board or your phone will not work, as i looks like some kind of RF cable.
It's probably the port. My daughter dropped her 5c, which was just enough of a shock to momentarily disconnect the battery and cause micro shorts at the battery connector (this is what the Geniuses told me after looking at the logic board with great magnification). This being the case, the phone would make the charging sound and the apple would come up but disappear when the cable was removed. Power to the unit, but not the battery.
Wish I'd read these comments before doing the guide, first, because I just found lint in my discarded oem part, and then also because since they labelled it as "moderate" in difficulty, I allowed for a hour and it took me three because of the unnecessary removal of the LB. Ifixit still rocks, though.
I personally feel that this guide should not be tagged as being of "moderate" difficulty. I am no shrinking violet, and I have completed dozens of the guides here at ifixit (haven't clicked the "success" button on very many, tho) and I would call this one "Difficult" at the very least. First off, my time is valuable, and I allowed for about an hour to complete this moderately difficult repair, and instead it took me three. Secondly, I would not want an inexperienced noob to think that this was a good place to start fiddling with their iphone. If you haven't say, replaced the volume buttons or headphone cable on a 4 or 4s, when you get to this lightning connector, you could EASILY destroy your replacement connector without that experience, and then that unfortunate ifixer is hosed without a phone for days until a replacement can be ordered and delivered. Third, I honestly do not think that calling a complete and total strip and disassemble of a 5 simply "moderately difficult" is accurate. My 2 cents.
So, of COURSE I dropped the screw that you are not supposed to lose. I was being careful, but as I did not want to lose track of it, I attempted to put it back ing the phone FIRST. Bad idea. This makes the plate kind of springy, and my screwdirver slipped, and the screw popped up, spun in the air, fell between my legs, bounced off my padded chair, and clattered around on the floor. I searched for an hour, and could not locate it. BE IT KNOWN, at least in MY CASE, the screw WAS INDEED attracted to my magnet (I keep a powerful round magnet stuck to the shaft of my drivers to provite the magnetism, far more powerful than a regular magnetic screwdriver. This being the case, I WAS able to provide a substitute fron a bag of iphone 4 screws, and my compass calibrated flawlessly upon power-up. YOUR MILEAGE MAY VARY, but I thought I'd add my experience.
If you are removing the logic board for any other reason than replacing it, or if your replacement logic board came with a fan installed, DO NOT REMOVE THE FAN. It is not necessary for the removal of the logic board. For removal with the fan attached, only remove the two screws on the left hand side of the fan, and leave the cable attached. I see here that too many people have broken the fan cable, and it is too easy to do.
I found it mostly unnecessary to remove the fan and therefore all of the fan screws in this step. Only the two on the left hand side of the fan actually need to be removed. I also found it extremely helpful, after pulling logic boards several times, to remove the speaker screws at this time. The heat sink and the speaker interfere with each other when you are later trying to remove and then install the logic board. The longer screw goes on end of the speaker assembly that is closest to the fan, and the shorter one goes on the end closest to the dvd slot.
As Mateo said, replacing the zif cable is NOT easy, and in this case, will leave you with a computer that won't power on- this cable connects the power button. I learned a trick somewhere for dealing with these cables- put a piece of good sticky tape on the cable, and use it to pull it back into the connector. Works every time.
I am confirming from experience and also a discussion in the ifixit answers section (MacBook 5.1 temperature sensor missing?) that not all (few in my experience) 2009 macbook 5.2s have anything connected to the TEMP J5550 connector at the seven oclock position in relation to the fan. It is simply empty.
When I did this the ribbon cable beneath the plate stuck to the plate, and this guide makes no mention of this cable at all. Be aware that it has to be re routed and re attached to its positions on the logic board or your phone will not work, as i looks like some kind of RF cable.
you probably didn't reconnect the wifi antenna connector very well if at all. It is pretty tricky to get it right.
It's probably the port. My daughter dropped her 5c, which was just enough of a shock to momentarily disconnect the battery and cause micro shorts at the battery connector (this is what the Geniuses told me after looking at the logic board with great magnification). This being the case, the phone would make the charging sound and the apple would come up but disappear when the cable was removed. Power to the unit, but not the battery.
Wish I'd read these comments before doing the guide, first, because I just found lint in my discarded oem part, and then also because since they labelled it as "moderate" in difficulty, I allowed for a hour and it took me three because of the unnecessary removal of the LB. Ifixit still rocks, though.
I personally feel that this guide should not be tagged as being of "moderate" difficulty. I am no shrinking violet, and I have completed dozens of the guides here at ifixit (haven't clicked the "success" button on very many, tho) and I would call this one "Difficult" at the very least. First off, my time is valuable, and I allowed for about an hour to complete this moderately difficult repair, and instead it took me three. Secondly, I would not want an inexperienced noob to think that this was a good place to start fiddling with their iphone. If you haven't say, replaced the volume buttons or headphone cable on a 4 or 4s, when you get to this lightning connector, you could EASILY destroy your replacement connector without that experience, and then that unfortunate ifixer is hosed without a phone for days until a replacement can be ordered and delivered. Third, I honestly do not think that calling a complete and total strip and disassemble of a 5 simply "moderately difficult" is accurate. My 2 cents.
So, of COURSE I dropped the screw that you are not supposed to lose. I was being careful, but as I did not want to lose track of it, I attempted to put it back ing the phone FIRST. Bad idea. This makes the plate kind of springy, and my screwdirver slipped, and the screw popped up, spun in the air, fell between my legs, bounced off my padded chair, and clattered around on the floor. I searched for an hour, and could not locate it. BE IT KNOWN, at least in MY CASE, the screw WAS INDEED attracted to my magnet (I keep a powerful round magnet stuck to the shaft of my drivers to provite the magnetism, far more powerful than a regular magnetic screwdriver. This being the case, I WAS able to provide a substitute fron a bag of iphone 4 screws, and my compass calibrated flawlessly upon power-up. YOUR MILEAGE MAY VARY, but I thought I'd add my experience.
If you are removing the logic board for any other reason than replacing it, or if your replacement logic board came with a fan installed, DO NOT REMOVE THE FAN. It is not necessary for the removal of the logic board. For removal with the fan attached, only remove the two screws on the left hand side of the fan, and leave the cable attached. I see here that too many people have broken the fan cable, and it is too easy to do.
I found it mostly unnecessary to remove the fan and therefore all of the fan screws in this step. Only the two on the left hand side of the fan actually need to be removed. I also found it extremely helpful, after pulling logic boards several times, to remove the speaker screws at this time. The heat sink and the speaker interfere with each other when you are later trying to remove and then install the logic board. The longer screw goes on end of the speaker assembly that is closest to the fan, and the shorter one goes on the end closest to the dvd slot.
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