iPhone 5s showing No Service SIM Card working

If you iphone 5s WiFi is gray,do not worry, vipprog can help you fix it.

IPhone 5S has no service when inserting SIM card.

Repair Process

“About iPhone” displays IMEI, modem firmware and ICCID, as shown in picture 1-57.

Picture 1-57

IPhone does not show IMEI when dial *#06#.

Check operator and there is China Mobile, China Telecom but no China Unicom (picture 1-58). Under normal circumstances, the three operators will show up at the same time.

Picture 1-58

China Mobile and China Telecom showing up suggests part of the signal channel circuit is normal. The trouble is in baseband CPU.  Remove the baseband CPU and Reballing Stencil on it. Reassemble it and enter system to test. IPhone has signal now and it is normal to call. Therefore, the trouble is removed.

Comments

Post a Comment

Popular posts from this blog

Slove iPhone X Won't Turn On

Image
Customer delivered a iPhone X and described the fault is not to boot after the phone drop accidentally. It reports error 56 when restore the iPhone X. How to repair this fault? Because iPhone X is the two board connected through the middle column, it is easy to drop the point. It may be that the solder points from NFC chip to the CPU part have fell off. Take apart the iPhone X by iPhone Screwdriver Repair Tools , take the upper board off the main board, when separate the main board we see a row of points have fell off. Picture 19-3-1 Look at the location map on WUXINJI dongle , it is surrounded by a ground wire, in fact, there are 6 useful points dropped. The ground wire does not need to be filled, the 6 useful points are added by professional phone welding tools. These are the signal wires of the NFC chip, so the iPhone X would report error 56. Picture 19-3-2 Then the tin of the middle column is repaired by iPhone X BGA reballing stencil , and the AP part is welded bac...
Read more

What to do if iPhone 6s can't add fingerprint

Image
My iPhone's Touch ID fingerprint scanner's not working! It won't recognise the fingerprints stored in the system. How can I fix Touch ID? The iPhone 6S accidentally dropped into the water, and then it came up with a fingerprint faulty, the iPhone 6S can't add fingerprint. So the customer sent it to us to repair. Now, let's take a closer look at this iPhone and then repair it! Disassemble the iPhone by JM-P01 Toolkit  , carefully remove the iPhone motherboard. After checking, we found signs of corrosion in the fingerprint socket, and then detect MESA_TO_BOOST_EN_CONN. Use Fluke 15B+ Digital Multimeter  to measure the diode data of PP16V5_MESA_CONN fingerprint boost boot signal and 16.5V, the data is normal. Observe the iPhone PCB board carefully under the VGA Camera 7-45X Trinocular Stereo Microscope  , we found something else. The bottom pin was severely corroded after the corrosion was removed from the fingerprint boost U4040. A2 pin PP_VCC_MAIN is disconn...
Read more

Setup and install the zxw tool Dongle Wizard

Image
So, you recently purchased ZXW Tools from our vipprog online store have no clue how to set it up?  Well, here is a quick guide detailing the installation process. Step 1 Unbox the ZXW tools dongle and plug it into your Windows PC.  ZXW tools does not support Mac at this time, so you’ll need a Windows compatible box. Step 2 Download the ZXW Tools software [direct link].  The ZXW tools website is in Chinese, but lucky for you, we’ve made it easy for you to download the latest version of their software directly from our website.  The zip file contains all of the files necessary to run ZXW Tools (trace) and Blackfish (schematics).  There is no installation process.  You just need to copy the files over to a directory on your desktop. Step 3 After you’ve copied all of the files over to a folder on  your desktop, then just run the ZXW tools executable.as shown in the picture. When your first run the software, the program will ask yo...
Read more