User Profile

[Jessa_the_Professa]

217C? That’s lead free. You can’t use that for iPhone repair.
You need leaded solder paste 183C for everyday reballing, and some 138C for iPhone...

[Jessa_the_Professa]

Remember--Fresh paste is great--but you must dry it out before using it.

[Jessa_the_Professa]

Don't worry about those dates---we use solder paste that is a couple of years old. Just make sure that it beads up and works like expected. Some fresh...

[Jessa_the_Professa]

Screen--yes, support it so that it is always somewhat upright, never lying flat open.

Split screen. This isn't necessary, it's just a suggestion....

Hello Jessa,
I asked a couple of questions seeking clarification regarding some points you made which I think you've missed. Please see
...

[Jessa_the_Professa]

Before attempting to reball check your paste. Make sure it nicely beads up into balls with heat.

[Jessa_the_Professa]

all of this is because of your paste. You need fresh paste that is very dry....

[Jessa_the_Professa]

For reballing you want very very very dry paste. In picture 3 your paste is too wet. Make it more dry before adding to the stencil. Do not add additional...

[Jessa_the_Professa]

We use the sunshine blocks that we sell at store.ipadrehab.com and they work great for this job. You'll have the easiest time putting split boards back...

[Jessa_the_Professa]

In my experience a board with no NAND on it at all will fail at 19%. There is no way to know in advance whether this is corruption of the NAND itself...

[Jessa_the_Professa]

NFC is near field communications chip and is not necessary for the iPhone to boot on iOS13. However, on iPhone 7 and up the phone will not accept the...

[Jessa_the_Professa]

Those are all good observations.
Use fingernails for everything, or a fine general
purpose tweezer. Black plastic spudgers are for things...

[Jessa_the_Professa]

With iPhones, the problem is where the water went--usually. You said "I removed NFC_RF" because it was getting hot. What line was short?...

[Jessa_the_Professa]

Be sure that time/date are correct and that you have a known good SIM with active service. Does it show it's IMEI in settings?

[Jessa_the_Professa]

Most microsolderers have a JC programmer--however, you'll want to let things settle for a week or so after the release of the "don't have to desolder...

[Jessa_the_Professa]

Accessing someone's data without their passcode is tough from a legal standpoint. You have to assume that the deceased would have given you his passcode...

[Jessa_the_Professa]

What is the nature of the prior repair attempt? Do a close visual exam looking at all angles. Has the CPU had rework?

[Jessa_the_Professa]

I would use hot air to remove that cap in the middle on the left. Then take cumulus nice and easy.

[Jessa_the_Professa]

I don’t think I’ve ever removed an accelerometer ic—not a failure point in any of the devices I work on, so I don’t have any experience base with...

[Jessa_the_Professa]

If you are SURE that you want to try to fix this instead of live with it, then step one--rule out a screen problem. Ideally, put the logic board into...