Hardware Repair Series - Samsung E700-E710-E715 insert SIM Solution
 

@All

Well for quite some time I have not posted any solutions, due to alot of facts which I wont go into details on now :D

Anyway today we gonna solve the E710 "Insert SIM" fault, very easy to repair.

Tools needed for this fix :

1 : Soldering Iron 30 - 50 Watt with SMD tip.
2 : Good flux, I recommend ERSA - FMKANC32-005 non-clean cream.
3 : Soldering tin 1.5 - 2 mm with core flux.
4 : Thin patch wire insulated !

The problem occurs normally around the IC called U100, the function is actually power module/led driver and RS232 between the Sim Reader and CPU !

I've had too many with broken lines from Sim Reader to U100

Lets fix the bugger

Here you see the area we have to work on, to find the correct leg, start from top left side of U100 and start counting counter clockwise untill you reach leg 48-49-50 and 51, you can see in this picture where the pacth wire is located so you have an idea where it is

http://www.gsmcoolhawk.com/gsmforum/...E710_SIM_1.jpg

On the next pic here you see the "work area" magnified to 60x. Now the red numbers corresspond to U100 leg numbers, while THIS CYAN is what legs on the SIM Reader they are connected to

http://www.gsmcoolhawk.com/gsmforum/...E710_SIM_2.jpg

On the last pic here you see the SIM Reader legs and their numbers, in red you have the leg numbers on U100, so just measure if you have all 4 lines ok, if not you have found the fault

http://www.gsmcoolhawk.com/gsmforum/...E710_SIM_3.jpg

Well thats it for this time :D

More coming up soon in Samsung hardware repair area

Hope this helps out some folks. Good luck, and dont blame me for busted boards, do this at you own risk !

And please, do not start any "send me too" posts of any kind, they will be deleted. I do not have it whatever it might be. For your information I use a Novex AP-8 stereo microscope, and pictures posted here is taken with a QX3 Intel (tm) digital toy microscope, you can find those nice little ones on Ebay for around 60 Euro.

OBS ! Edit 16/9-2005

Solution for E700 will come as soon as I get a E700 board and can take some pictures. Power supply IC here is called U400, and have a different wirering..

And please, DO NOT start 1 line thank you posts, I WILL delete them, its waste of our server space, post only if you have anything additional which is directly related to this fault, or if you have found other solutions than this.

You may rate the thread instead of posting thankyou post or you can choose to make a vote on the poll on top of this page !

Regards

What is solution for E715 insert sim ?

@Jani-Jan

Have you opend the phone and checked if same module is used ? I've been told this solution here works on E710 also, but I do not have schematics for E715 as of yet, if anyone have, let me know by email or PM, or post in this thread here.

Regards

*Edit*

It's now confirmed. This solution will work on the follwing models. E700-E710 and E715, all have the same U100 chip and wirering !

Regards

hi mr gsmcoolhawk
im posted here 3 pic for e715
i hope to help any one to solv this problem

I believe a good solution for E715 will come with time. GSM Coolhawk had already given us a clue. So let us continue researching.

@abbeydguru

Please READ full post before you post. The name of this thread is "Hardware Repair Series - Samsung E700-E710-E715 insert SIM Solution"

E715 can be repaired same way as E700 and E710, also see that I have a edit in my post just above, where it clearly states E715 can be repaired same way !

Regards

E71x SIM reader ways
 

here is shared the E71x SIM reafer ways

Good solution
tested by me and work 100%, i have good luck to have one e715 insert sim and now repaired ;)

E700 Insert Sim
 

Pls any Solution E700 Insert Sim. this board power i/c is U500.

Have you tried this solution and it did not work for you??

hi eko
Thank's Reply

yes i tried the solution aldy. but the power i/c is BGA (U 500) not same U 100.
sorry my Board is E700A :confused:

good solution for E 700 , but what about V200 any one have solution for insert SIM Solution ?
Thx

Solution will work until have not problems between power IC and Agere CPU lines :( so 90% with "user" hardware damaged SIM sockets can be maded with GSM Coolhawk solution... another 10% with break between power IC and CPU need more work.

lol

e700 not agere system and have no agere power ic.

so it's not for e700

the same is for me.I have u500 power supply,how to make this work with u500?


regards

look good ,i hope to try it .but pls any solution for a dead e700,i got one.problem started when screen became white.since then phone cant power on.thanks in adv.

i could not open the e715 rar file for solution

same e710 insert sim power IC

Quote:

Originally Posted by hitibiti good solution for E 700 , but what about V200 any one have solution for insert SIM Solution ? Thx

hello all engineers the following is my problem plzzzzzzzzz help me

hello all engineers
i have SAMSUNG E700 when i try to turn on the set Wiht SIM and with out SIM also after Samsung logo the set itself turns off i flah the set more than 3 time but the problem is till.and when i change the battery the set automatically short the battery
any stron solution ..............................?
any stron solution...............................?

Hi I have a e715 and ı have sim problem. I changed power ic but problem is same. They have a any idea?????

Thanks Goood 100/100

Pls any Solution E700 Insert Sim. this board power i/c is U500.

Pls any Solution E700 Insert Sim. this board power i/c is U500.

hello all engineers
i have SAMSUNG E700 when i try to turn on the set Wiht SIM and with out SIM also after Samsung logo the set itself turns off i flah the set more than 3 time but the problem is till.and when i change the battery the set automatically short the battery
any stron solution ..............................?
any stron solution...............................?

E700A open cover
 

Hi tech.

Appreciate sharing for E700 / A solution. I still can't figure it out how to take out cover of E700A. Is anyone can help to post the steps for me? I hope you guys can help me in repairing as i am new in mobile tech.

ai want serves manul for e700 power

can anyone assist with X660v unlocking method or any of its unlocking files

Hello every body, I had never meet this problem. I'm looking to sollution of charge problem ( the connector is good but both of the contacts of the charger are short circuited ) thanks for your replies.

I once had such an e715 which had this problem, it was a brand new phone, no pcb damage, etc.
I needed to replace U100, which I just did from an X450, and phone worked...

nice schematics
 

ello
i have few pieces e900 camera problem. When i switch on camera it shows only red and blue colour. Somebody please help and tell me how to repair these pieces. I also tried flashing in optiflash but still same problem....help...

hi i have samsung e900 few minute after power on insert sim card with sim in

if any body post simple pic.then i define the sim ways on pic........

thanx for you cause of the help you gave to us in everything

Hi hitibiti how u doing .......from the look of things E 700 INSERT SIM has got a solution what about this one NO SOUND i have reset eeprom still....any idea....thanks

Samsung r220 keypad not wark, matal is ok....... plz help!!!!!!!

i need samgsung n500 sim wave

:) :) :) :) :) ++++++++++++++

thanks
 

i want to all nokia hardwear tips

i want to all nokia hardwear tips. send me my e-mail id plz not my id
[email protected]

thanks & waiting for all nokia tips

any one can help?samsung x458.......simway....i am waiting.thank

HI GSMCOOLHAWK & all ...
thanks for your share .my problem is S300 sim ways .if u possibale pls solve my problem.post S300 sim ways .thanks in advanced.

hi bro , u r searching in wrong area.for nokia hardware tips u serch in nokia hardware area.

i have SAMSUNG SPH-i700 PDA Camera MP3 Verizon Phone.this phone dont have sim slot .is there any way i can use this phone in gsm network?
please reply to my mail add [email protected]
thank u

i need pinout for samsung 191

Thinks For Help Prof

e700 display sollution
 

Hi mates,

My display of samsung E700 is just white, can anybody help me ?

thank for ur sharing