1, restart the iPhone wireless charging if the iPhone wireless charging suddenly does not charge, it may be because sometimes unpredictable errors occur in the update of the iOS system, which will cause problems with the wireless charging function, usually as long as the restart can be solved. Remove the iPhone case Sometimes the iPhone case is too thick will also lead to wireless charging, then you can try to remove the iPhone case, and then put back on the wireless charging board to charge.
2, will not affect the use, but willAffect charging. Wireless charging technology comes from radio energy transmission technology, which can be divided into two ways: low-power wireless charging and high-power wireless charging. Electromagnetic induction is often used for low-power wireless charging. High-power wireless charging usually adopts a resonant mode by the power supply device (charger) to transmit energy to the electrical device, which uses the received energy to charge the battery, and at the same time for its own operation.
3, if it can be used, it is OK, which is an electromagnetic conversion coil, not scratch the coil will not affect the charging effect. Cut off can not charge, short circuit will overload or even harm the charging head.
4,Very low, tens of dollars, if you want to replace a wifi module, the price is about 200-300.
3, the wifi template is bad to change it is generally about 200 to 300. It is best not to repair yourself, after all, it is a technical job, get the local special repair mobile phone place to repair it.
4, this is not necessarily, many repair mobile phone stores have screens, but Apple's after-sales screen can basically guarantee that it is genuine, but the outside repair of the mobile phone place for the screen has good or bad, and if you do not pay attention to the change of a poor screen may bring greater useIt is recommended to replace it in a regular repair shop or go to Apple's after-sales service directly.
5, WIFI normal, this is not finished, give your WIFI module on an insurance (buy tube 2 in 1, paint around the WIFI module), simple understanding (the module fixed) after the WIFI temperature is high, it is not so easy to take off welding. When the glue dries, install it. Finished. The WIFI module is the whole small board, not those chips under the iron sheet.
mAh. 0 is 4Ah wireless charging plate production , that is 4000mAh, battery wireless charging plate production standard capacity unit is Ah. If the capacity unit is Ah, the unit can not be marked. The international standard unit of coulomb is current multiplied by ampere-second of time: 1mAh=0.001A×3600s=6As=6 Coulomb mAh is not a standard unit, but this unit can be easily used for measurement and calculation.
Battery chargingThe current is 0.2c to 0.8c, of which 0.2c is the best charging current. That is to say, 400 ma is the best charging current, usually for wireless charging plate production fast charging, choose 600 Ma to 800 Ma is more appropriate. 0 is 4Ah, that is, 4000mAh, and the standard capacity unit of the battery is Ah. If the capacity unit is Ah, the unit can not be marked. The key to buy an electric wrench is not to look at the target V number, and the industry virtual label is very strong. The key is quality and brand.
1, lower the brightness of the display. If possible, try to replace the original battery of the mobile phone.
2, if you cross the prison to restore the firmware, try not to jailbreak to see how long standby time! If this is not normal is the motherboard running, hardware problems need to go to after-sales maintenance.
3. Does the phone get hot when not in use? 4S this machine appears this problem is more, mostlyThe number is caused by a short circuit on the main board. It's usually a power amplifier problem, take it to the repair shop to fix it. If it does not heat up, it should be a battery; Caused by aging.
4, this is too normal, you use this mobile phone must not be short, my 4s some time ago once reached I do not operate anything, put in the pocket, 3 or 4 hours from 100% to 0, Apple things like this, then it is fortunately in the warranty period wifi broken, I changed a refurbished, the battery gave strength.
5, when it comes to the standby time of Apple 4S, we understand that it is in a full charge state, under normal use aboutLast a day or two. If your 4S is in static mode, does not make phone calls and frequently opens apps, you can reach more than a day of standby time in the lock screen. However, as a smartphone, the battery capacity of the Apple 4S is relatively small, only 1420 mah, so the power consumption is fast, and a charge a day is relatively common.