Skip to main content

How to fix iPhone 6S Plus cannot charge?

We got a faulty iPhone 6S Plus,  its problem is  that it cannot charge, even if we replace the new iPhone battery, the problem still the same.  Vip Pro Shop Team tell you how to fix it.

The iPhone 6S Plus  reboots frequently and regularly after charging at night, then it cannot be charged on the second day, it was sent to the store to replace the iPhone 6S Plus battery but invalid. Replace the charging tube, USB controller, field effect on the pipe short, and hit the ground resistance, we did not find any abnormalities. Replace the relevant iPhone IC, the failure can not be resolved. so we take out the motherboard immediately to check . 

According to the experience,  we judge the motherboard should be unable to detect battery data. Test the iPhone LCD assembly, press the boot button to trigger the boot function, we found LOGO get lighter than the normal device, enter into the system and connect 3U tools, which really shows no battery data, CPU can not detect the battery. Test other functions are normal, during the test process, the iPhone 6S Plus reboots every three minutes, it can be connected and there is a sign of charge, however, the power does not rise, it increased by 3% after unplugging the data cable, but immediately less than 3% when plugging in.

Immediately go to fix the device after the fault is confirmed, the ground resistance of the battery detection pin is measured first. As shown in picture 8-2-1.



After the measurement we found it gets normal again, USB controller and charging tube were replaced before, after the replacement of the fault is still existing. Then measure the sacred resistance of the charging pipe, and the USB controller's resistance to the ground, there is no fault.

Then I wonder if the iPhone 6s Plus CPU itself is damaged, measuring the charge tube to the CPU SIW to control the bus voltage, as expected, the voltage is only about 0.8, and it's also jumping.

For iPhone CPU internal damage, this can only be tried by external power supply to the SWI bus pull up. As shown in picture 8-2-2. same failures also happen a lot on A8, this method is not 100% can repair, in the case of iPhone CPU is not completely damaged, it's also possible to be fixed.



Starting from a suitable place, pulled from C3620_RF main power supply over a series of 10K resistance to SWI_AP_BI_TIGRIS, as shown above picture. After the completion, install LCD assembly to test device, we found that LOGO lights faster than before, at this time we are going to connect 3U tools. 


Now, the 3U tools is able to read the battery information, showing battery life and charging times. Continue to test the function, no reboot phenomenon, and the power can also be charged normally.

Finally, the iPhone 6S Plus can back to normal work. 
Labels:

Comments

Post a Comment

Popular posts from this blog

Complete Guide to Replacing Your iPhone Battery at Home

  Has your iPhone battery started showing the dreaded signs of age, like frequent charging, rapid draining, or even an untimely shutdown? Are you considering a battery replacement but feeling deterred by the potential cost or hassle of a trip to the Apple Store? Don't worry; with the right guidance, you can replace your iPhone battery at home quickly and safely, sparing your wallet and ensuring a future of longer charge cycles for your beloved device. Whether you have the latest model or an older version, we'll walk you through the process step by step. But before we get into the nitty-gritty, here's why a battery replacement might be in your best interest. Why You Should Replace Your iPhone Battery The lithium-ion batteries in our smartphones are not immortal. They degrade over time due to a variety of factors, such as age, temperature, and the number of charge cycles. Replacing an old battery can provide several benefits: Improved Performance: A new battery can result ...
Post a Comment
Read more

User Manual: JC V1 Programmer to fix iPhone light sensor/vibrator

As we know, the light sensor and vibrator is very important for iPhone screen. If you want to replace the iPhone screen, you also need to transfer the original screen data to the new iPhone screen(iPhone 8 to iPhone Xs Max),so you can make sure the new iPhone screen will work fine. Here is a  JC V1 programmer  to fix iPhone light sensor and vibrator problem (for iPhone 7- iPhone Xs Max), it also can repair iPhone baseband eeprom IC or iPhone logic eeprom IC problem. The JC V1 Programmer comes with 24-inch HD display screen, three-color LED indicator light, two small connecting seats (for connecting function panel) , two buttons and one function panel (including light sensor/touch connector, baseband function connector, vibration connector) It support 2 languages (Chinese/English) and three lines of code (read/write/burn/save), the function panel can be changed, the software can automatically update What’s the functions? - Repair iPhone Light sensor/ true ...
1 comment
Read more

Here: JC P11 iPhone Nand Test Fixture Specification Details

JC P11 iPhone Nand test fixture is on sale now, some users still confused for it, what's credit points for JC P11? Why it's cheap? As we know, JC P11 BGA110 programmer is the latest programmer for iPhone   iPhone XS Max,XS, X, 8P, 8  and iPhone 11 Pro max/pro/11, which is made by JCID factory.  Here are some  specification details for JC P11 programmer . 1. Main Functions. - Support to modify and write BGA110 NAND SYSCFG data (NAND Flash underlying data, such as SN/BT/WIFI and others); Unbind WIFI. - It doesn't require restoring the firmware for brand-new Nand flash, the SYSCFG data can be written directly. - Repair the Error 35 during firmware restoring for BGA110 NAND - Repair the DATA Error for BGA110 NAND - Support iPhone 8/8P/X/XS/XS Max currently, free software upgrade to support 11-11Pro Max in the future - Initiate the network charging mode, can purchase the points according to the demand, which greatly saves the equipmen...
Post a Comment
Read more