Mobile repairing

Swollen-Battery If battery is swollen then check the mobile for shorting. If battery is swollen much then don't use it because it may get burst Swollen Batteries don't give enough backup it discharges too quickly generally swollen battries give one to two hour backup so you need to change the battery at the earliest If the problem is same even after replacing new battery then you need to first solve the shorting problem in the mobile phone.

if mobile phone display is white then Check the following Check the display Check the display connector Sold it properly if display is solder type Check the display IC and CPU Check the voltage of display

Mobile phone switched off automatically Do the following , if mobile phone switched off automatically Check Battery Check Battery Connector Check for Shorting Check On/Off Switch

Touch screen working automatically. For this problem first you need to check the touch screen connector and then fit the touch screen properly,  and sold it carefully if needed else change the touch screen.

How to format a memory card using disk management tool - If you can’t format your Memory card/USB drive/USB pen drive using My computer – right click – format option, then you can do the same by using windows Disk Management tool. Here is how you can do it.  warning : Always take backup of your important data before formatting any drive/memory card/usb pen drive #1: Right Click My Computer and then select Manage from the menu. #2: Computer Management windows will be appeared on the screen.  #3: Click Disk Management option as shown below  #4: All the drives will be shown in the right pane of the window. Right click the desired drive then select format.. option from the menu.  #5: One more window will be appeared on the screen. There you may type Volume Label for your memory card. It’s nothing but a name for the memory card. Also you can select the desired file system for the memory card such as FAT or FAT32 and then click OK button to start the formatting pro...

“There is no Disk in Drive” (Solution) While Formatting the Memory card. If you are getting such kind of error messages like “There is no disk in Drive, Please insert the disk, and then try again” While formatting the memory card (whether it is Micro SD, Mini SD or MMC) from My Computer using format option by right clicking on the drive in Windows. Such kind of error comes when Windows does not recognised the memory card. Here I am explaining in detail that how will you overcome this problem. The card you are trying to format may be of any capacity whether it is 1GB, 2GB, 4GB, 8GB or 16 GB. These tips will surely help you. These tips are on only the trial and error basis. #1: In case you are using a memory card reader to format a memory card, check that whether the memory card reader you connected properly at the USB port of the computer. If it is ok then try to connect your memory card reader at different USB port and try to format it. If you are using USB HUB, then try to ...

Windows was unable to format memory card (Solution) “Windows was unable complete the format”. Are you one of those who is getting such kind of error messages while formatting the memory card/USB drive. Here is the solution to this problem. Try to format the memory card from the command prompt by following these steps.  Warning: Before proceeding further take backup of all your important data as formatting process will erase all data of your memory card.  First of all, Insert your memory card into memory card reader and then plug it to the USB port then  Step 1: Click Start then choose Run.. option from the menu. Run dialog box will be appeared on the screen.  Step 2: Type in CMD at there and then press Enter key. Step 3: Command prompt screen will be appeared on the screen.  Step 4: Type Format  at the command prompt (In my case memory card is I drive) so i will type here Format I: then press Enter key to start formatting process. As you press En...

How to format a memory card ? Now a day’s memory card is used in many electronic gadgets to store music, videos, documents,Photos etc. Sometimes data of its automatically got corrupted or even it can not show its content. I also faced such kind of problem in my digital camera. So we need to format it. So Here I am giving you detailed explanation of How to format a memory card in Windows XP. Formatting of a memory card requires a device called memory card reader. Warning: Formatting process of memory card will erase all stored data. So please keep in mind, always take backup of your important data at another location. (Simply copy the important data at your hard disk drive) Step 1: Insert your memory card into the memory card reader. (There are different kind of memory card readers are available in the market. some support Mini, Some Micro SD and some MMC (Multi Media Card) and also special kind of memory card readers which supports almost all kind of memory cards are also...

What is a memory card ? Memory card is a small, light weight, easily portable, removable, electronic data storage device which can be used to store audio, video, photos, multimedia presentation and any document in digital format. It is also known as flash card. Data of memory card is retained without power. It is used in many electronic gadgets like mobile phones, Ipod, Digital camera, Handy camera, Video game console etc. It comes in many varieties such as MicroSD , MiniSD, MMC (Multi Media Card), Miniature Card, Memory Stick, Memory Stick Duo, Memory Stick PRO Duo, Memory Stick Micro M2, Secure Digital card etc. It comes in various capacities. So according to our need we should buy it. It comes in 256 MB (Mega bytes), 512 MB, 1 GB (Giga Bytes), 2 GB, 4 GB, 8 GB, 16 GB and more. It totally depends on our use and what kind of data and how much data we would like to store on it. If you are using high resolution digital camera such as 8.0 mega pixel or 10 or 12.0 mega pixel ...

Hard Reset Android Mobile 1. Switch off the mobile phone. 2. Now press and hold volume up and power key. 3. Now Android System Recovery menu will be appeared as shown in the picture. 4. Now choose "Wipe Data/ Factory Reset Option" by Volume Up/Down Button. 5. Now press power button to active this option. 6. Now select "Yes" to do the hard reset.

iPhone Reset iphone reset 1. To reset iphone you need to press and hold Home Key+ Sleep/Wake up Key. 2. After doing so your phone will be switched off. 3. Now leave both of the buttons. 4. Now Apple logo will be appeared on the screen. 5. After a few seconds your phone will be reset and restart.

speaker Faults Speaker Problems 1. For this first check the speaker with multimeter. 2. Clean the cotntact point of the speaker. Sold/resold the wires of the speakers if required with iron. 3. Resold or Reball the AF IC/UEM IC if required. 4. Find the track of speaker and make a jumper if track is broken.

Mike Faults MIKE Problem 1.Check the MIKE with multimeter 2.Clean the contact point of the mic if required. 3.Resold the wires of the mic if it is broken. 4.Resold / Reball AF IC if required. 5.Find the tracks of the mic, you can also refer jumper book or you may also find jumper on internet and make the jumper if required.

Sim Cards Faults 1. PIN Code : if you don't know the PIN code don't try with wrong codes because mobile will stuck in PUK code. 2. PUK code : don't try with wrong PUK code because if you try wrong PUK code many times then mobile sim will be blocked. To solve this problem ask for the PUK code to the customer care support of you mobile sim service provider. 3. SIM Blocked : For this you need to get a new SIM card from the company. 4. SIM Locked : You can solve this problem by flashig your mobile. 5. SIM Rejected : Either SIM is bad or SIM IC.

Charging Faults : If mobile phone is not charging the battery then For this 1. Check 5.7 to 9 Volt DC on charger through multimeter. 2. Check the charging socket, if it is bad then replace it. 3. Check charging fuse. 4. Check charging coil. 5. Check charging diode. 6. Check the tracks + and - for the charging if it is broken then make the jumper. 7. Check the charging IC or UEM, reball it or replace it with good one if needed.

Reballing BGA IC (Method) Here is the step by step process to do so. 1. Remove the BGA ic by hot air machine/workstation. 2. Then clean the ic by removing it's balls by iron. 3. Now clean the PCB from where ic is removed and remove extra solder. 4. Now set the ic in below the stencils in BGA Kit according to the ic. 5. Now apply some PPD paste on the stencils where ic is set. 6. Now apply some heat by hot air machine, where PPD paste is applied. 7. Now IC reball is done, now you can resold this IC to the PCB

Dead Mobile Problem Checking of Dead Mobile Phone If mobile is completely dead then do the following checking 1.Check 3.6 to 4.0 volt on battery. 2.Now try to switch on mobile by giving power supply through DC power supply machine or Flashing box or Charger. 3.Check the battery connector if it is loose then resold it, if it is broken replace it. 4.Check on/off switch, if it is bad then replace it. 5.Check RAM, Flash IC, CPU and Power IC 6.Check the mobile for software problem/Do complete flashing

Contact Service Problem 1. If mobile phone shows "contact service" when swtiched on. To solve such kind of problem you need to do complete flashing.

Keypad Problem 1. If any one or two keypad buttons are not working then you need to clean the keypad carbon. If problem persist then you need to reball or change the keypad IC. 2. If all buttons of the keypad, or any one row or anyone column buttons are not working then you need to reball/ replace the keypad IC.

Display Problem Display Problem 1.Mobile is switched on but there is not display then first you need to check the display/replace the display. 2.If display is ok then also no display fault then it might be problem related to display IC/ resold it/replace it. 3.If there are some vertical/horizontal lines on the display or some spots on display then you need to replace the display.

Shorting Problem How to solve shorting problem in mobile phone. 1. If there is a shorting in mobile phone then first you need to check it with a multimeter.  To do so you can check it on buzzer range.  Put the meter's probs on battery contact points of the mobile phone if buzzer sound is generated by meter it means shorting is there in the mobile phone.  To solve this problem you need to check following components. 1.Keypad LED 2.UEM/Power IC 3.PFO 4.Audio Amplifier IC 5.BackLight IC If anyone of the above components is short, mobile will show shorting in the meter. Also check all the power supply capacitors and filters for this type of problem. Most of the time This problem comes due to shorting in PFO, Power IC or capacitors.

Network Problem If there is no network then 1. Check antina 2. Clean antina contacts 3. Check for loose contacts of antina 4. Then "manual search" network if network searches the providers list then 1. Antina is ok 2. PFO is ok 3. RF IC is ok if there is no provider list displays then 1. PFO 2. Antina Switch 3. FEM IC check or change

100% Practical Mobile Reparing Tips If mobile doesn't switch on then 1.Check battery. 2.Try with the charger. 3.Check Battery Connector. 4.Check Shorting in FEM, UEM, Backlignt IC, Audio Amplifier IC. 5.Check power on/off button. 6.26 MHZ crystal, CPU, Memory, Power IC 7.While flashing Ist boot error and IInd boot error shows then UEM is faulty. Low Netowork 1. Check PFO, Antina Switch and FEM IC 2. Check Antina and its contact points. Network Provoiders List Doesn't show while manual search Check PFO, Antina Switch and FEM IC Network is ok but can't call Check CPU and RF IC In Manual Network Search, NO Access Fault Check/Change Antina Switch or FEM IC No charging Check Charger, Charging Socket, Charging Fuse, Charging Coil, Diode, Charging IC Not Charging, Charger is plugged Check charging protection register, charging IC No Display Display, Display IC, Display Connector Check/Change Buttons of the keypad are automat...

Mobile Secret Codes  For Different task there are different secret codes in mobile phone such as to see the IMEI number, Factory reset, Hard reset etc. *#92702689# : To See life timer of mobile phone *#06# : To See IMEI number *#0000# : To See Software name and version *#7780# : For Factory setting in Nokia mobile *2767*3855# : To Format Samsung GSM OLD model *2767*7377# : To Format Samsung GSM *#7370# :To Format Nokia Phone *#800# : To Know China mobile software version *#0044# : To Know China mobile English Language setting *#001# : To China mobile English Language setting *#369# : To Change LCD contrast in China mobile

How to Repair Water Damage Phone 1. At first remove the battery from the mobile phone. Don't try to switch on the phone if it is wet.  2. Now Disassemble the complete mobile phone then dry all the parts.  3. You can dry PCB of mobile phone by hot blower or hot air machine.  4. Don't give heat to the battery and display.  5. After drying each and every part, assemble the mobile phone and then put the battery and try to switch it on. 6. if the phone doesn't switch on then again disassemble the phone and then clean the PCB with isopropyle alcohal and then dry the PCB and assemble the mobile phone again and check back by switching it on. or You may also use Ultrasonic Vibrator Cleaner to clean the PCB. 7. Now if phone doesn't get switched on then do the step by step checking for dead mobile phone and take the action accordingly.

Hard Reset Nokia Lumia Phone 1. If your mobile phone is on then click "Arrow Icon" at the bottom of the startup screen. 2. Now go to "settings". 3. Now go to "about phone" option. 4. Then choose "Reset Your Phone" Option. 5. Then choose "Yes" Option. Now wait for a while your mobile phone will be reset.

How to hard reset Nokia Lumia mobile phone (Windows 8 Mobile) 1. First switch off the mobile phone. 2. Then press and hold power button, when mobile vibrates, press volume down button. 3. After a few seconds you will see exclamation mark. 4. Now press Volume Up then Volume Down and then Power Button and then Volume Down Button one by one. 5. By this way you can reset your Nokia Lumia mobile phone.

Hard Reset Nokia Lumia Mobile Phone (Windows 7 Mobile) 1. First switch off the mobile phone. 2. Then press and hold Volume Down , Camera Button & Power button simultaneously. 3. When mobile phone vibrates then you can release Power Button. 4. As soons as phone restarts then release rest keys. 5. By this way you can hard reset you Nokia lumia mobile phone.

Method Of Flashing 1. First connect the mobile with the flasher box as shown in the picture and connect flasher box with computer with a USB cable. 2. Now open DCTx-UFX Software. 3. Now Click "Connect" button. 4. Now choose the model of mobile phone which is to be flash from different catagories such as DCT3, DCT4 5. Now choose MCU file. 6. Now choose PPM file. 7. Now click on "Check" Button. 8. Now click on "Flash" Button. Then flashing will be started. After completion of flashing click "format user area" to format the phone.