iPad Air 2 - DFU - waiting for ipad - no error - Page 4 - GSM-Forum

TecnoLatinosGSM · 08-15-2017, 06:51

Quote:

Originally Posted by jmr

can add whatsapp group?

Send PM to @magdani

Enviado desde mi MI 5 mediante Tapatalk

hiena_222g · 08-21-2017, 10:09

I have ipad air 2 with this (waiting for ipad ) give me the solution ?

dam1inc · 08-21-2017, 16:45

Quote:

Originally Posted by hiena_222g

I have ipad air 2 with this (waiting for ipad ) give me the solution ?

It's not that easy as "give you solution"....do you get "waiting for ipad" with nand attached?

Sent from my SM-G955U using Tapatalk

pApit0o0o0 · 08-22-2017, 08:46

Hello guys i have also 3x ipad air 2 lte and i have already this WIFI ic from aliexpress .... because of the IC is very thick ... what is the temp/time that u work on that because its not as easy as the other ICs .... i have a friend that works around 350c for 3 4 minutes and then its again hard to remove it because of the F**** black resin under ... give me tips of the TEMP/TIME before i start guys , thank you in advance , i like this thread , i am following

cisco2017 · 08-23-2017, 06:53

Quote:

Originally Posted by pApit0o0o0

Hello guys i have also 3x ipad air 2 lte and i have already this WIFI ic from aliexpress .... because of the IC is very thick ... what is the temp/time that u work on that because its not as easy as the other ICs .... i have a friend that works around 350c for 3 4 minutes and then its again hard to remove it because of the F**** black resin under ... give me tips of the TEMP/TIME before i start guys , thank you in advance , i like this thread , i am following

The temperature if fine for that IC but you need to work fast.
4 minutes is to long.

shield everything around the IC

Pre-heat the board for about 30 seconds 180% is fine, then increase heat to 350c (melting point of lead free solder)

You need a very fine spatula or you can use a pin like the ones that come in clothing (very fine)
Push the spatula or pin under one side only, but keep heat even and do that one by one until you raise the IC, you'll need at least 2-3 pins
If using spatula work just 1 mm on the edge free of components (no pads there) once in move it side to side (1 mm in) that helps separate on that side, then on one edge push spatula all the way in, take it out, go to the other side and do the same, at this point your IC might just pop up and if not then slide the spatula inserted all the way in from side to side (SLOW)

Something you need to pay attention is to push Horizontal (NOT IN AN ANGLE)

All that needs to be done under 2 minutes.

Remember is not the solder holding the IC is the Glue so you don't need to keep putting more heat on the board or you'll damage other components.

cisco2017 · 10-21-2018, 19:42

WOW memories ....

Came across my old post when working on the iPad Air 2, I finally figured how to fix the elusive "waiting for ipad" itunes error

pad-air-2-error-4014-after-change-nand-serial

TecnoLatinosGSM · 10-21-2018, 20:08

How you fix that bro

Quote:

Originally Posted by cisco2017

WOW memories ....

Came across my old post when working on the iPad Air 2, I finally figured how to fix the elusive "waiting for ipad" itunes error

pad-air-2-error-4014-after-change-nand-serial

Enviado desde mi Redmi 4X mediante Tapatalk

EAKANATH · 10-22-2018, 07:51

Quote:

Originally Posted by cisco2017

I'm currently working on iPad Pro no wifi after wifi IC change, then I'll go back to the Air 2.

I'll keep you posted.

error 4014 in ipad air 2 coming by SDRAM , before sombody overheat flash ic for 4013 -i first change flashic then the 4014 error comes,next i reball SDRAM it works .flashing fully done

cisco2017 · 10-22-2018, 11:05

Quote:

Originally Posted by EAKANATH

error 4014 in ipad air 2 coming by SDRAM , before sombody overheat flash ic for 4013 -i first change flashic then the 4014 error comes,next i reball SDRAM it works .flashing fully done

Interesting, you must to have heat up that main board a lot.

EAKANATH · 10-22-2018, 12:40

Quote:

Originally Posted by cisco2017

Interesting, you must to have heat up that main board a lot.

its difficult to clean gum down side of SDRAM

mcmihai003 · 11-08-2018, 20:20

have two air2 boards that after removing nand are detected in dfu -> disconnect -> dfu again and that's it...
my guess was that the ram is causing the issue, but on another board with same symtoms after remove ram the balls seemed ok, without bridges...
any idea?
thx!

cisco2017 · 11-11-2018, 07:38

Quote:

Originally Posted by mcmihai003

have two air2 boards that after removing nand are detected in dfu -> disconnect -> dfu again and that's it...
my guess was that the ram is causing the issue, but on another board with same symtoms after remove ram the balls seemed ok, without bridges...
any idea?
thx!

You need to be more specific on what you did and the error that you are getting.

Try a restore with 3utools and pay attention to the error on the animated graphic, why, read my link on how I fixed "waiting for ipad"

Description on what you did helps to diagnose basic problems like over heating surrounding IC

is short: Need

Work history steps
Temperature
shield used or not
Line test (voltage)
Did you check Nand pads on the board & Nand (some times they become lose if you use to much heat)

Error codes

Post as much information so that our viewers can help you and others can learn.

How I fixed waiting for ipad

mcmihai003 · 11-11-2018, 18:22

Quote:

Originally Posted by mcmihai003

have two air2 boards that after removing nand are detected in dfu -> disconnect -> dfu again and that's it...
my guess was that the ram is causing the issue, but on another board with same symtoms after remove ram the balls seemed ok, without bridges...
any idea?
thx!

I used 350 degrees for nand removal.
Without nand, on itunes i get error 4014 and on 3utools not able to go from dfu to recovery
Didn't tried to re-attach a nand...
i desoldered and solder back all nearby ICs (except ram ofc): U3000, U2000, U2180, U7503
On 3utools it stuck on 11% enter recovery mode: unable to go from dfu to recovery
PSU shows 50mA when disconnected from USB, and 0 when connected
All voltatges seem normal and steady.
Thx!

killme12 · 11-11-2018, 19:15

Quote:

Originally Posted by mcmihai003

I used 350 degrees for nand removal.
Without nand, on itunes i get error 4014 and on 3utools not able to go from dfu to recovery
Didn't tried to re-attach a nand...
i desoldered and solder back all nearby ICs (except ram ofc): U3000, U2000, U2180, U7503
On 3utools it stuck on 11% enter recovery mode: unable to go from dfu to recovery
PSU shows 50mA when disconnected from USB, and 0 when connected
All voltatges seem normal and steady.
Thx!

ERROR 4014 some time Nand is not properly attached to logic board remove nand reball it and resolder it back again ..................

mcmihai003 · 11-11-2018, 22:53

Quote:

Originally Posted by killme12

ERROR 4014 some time Nand is not properly attached to logic board remove nand reball it and resolder it back again ..................

thx for the answer.

i know about error 4014 due to improper nand programming.
but also the board should be able to enter in recovery without nand - this is my case..

thx again!

08-21-2017, 10:09	#47 (permalink)
hiena_222g Crazy Poster Join Date: Apr 2004 Age: 44 Posts: 50 Member: 61446 Status: Offline Thanks Meter: 0	I have ipad air 2 with this (waiting for ipad ) give me the solution ?

08-22-2017, 08:46	#49 (permalink)
pApit0o0o0 Insane Poster Join Date: Jun 2016 Posts: 65 Member: 2582013 Status: Offline Thanks Meter: 2	Hello guys i have also 3x ipad air 2 lte and i have already this WIFI ic from aliexpress .... because of the IC is very thick ... what is the temp/time that u work on that because its not as easy as the other ICs .... i have a friend that works around 350c for 3 4 minutes and then its again hard to remove it because of the F**** black resin under ... give me tips of the TEMP/TIME before i start guys , thank you in advance , i like this thread , i am following

10-21-2018, 19:42	#51 (permalink)
cisco2017 Freak Poster Join Date: Mar 2017 Posts: 387 Member: 2691507 Status: Offline Thanks Meter: 100	WOW memories .... Came across my old post when working on the iPad Air 2, I finally figured how to fix the elusive "waiting for ipad" itunes error pad-air-2-error-4014-after-change-nand-serial

11-08-2018, 20:20	#56 (permalink)
mcmihai003 Freak Poster Join Date: Oct 2011 Posts: 206 Member: 1675922 Status: Offline Thanks Meter: 61	have two air2 boards that after removing nand are detected in dfu -> disconnect -> dfu again and that's it... my guess was that the ram is causing the issue, but on another board with same symtoms after remove ram the balls seemed ok, without bridges... any idea? thx!