SD card Invalid file format message solution

I see the strange problem in my Micro SD memory Card, when I receive files from other mobile phones to my phones through bluetooth, When I play or run the recived file, it always say Invalid file or Invalid file format and received file name also changed into some special characters.
Aleady received file were running in my mobile without any problem.
One solution would have to format the SD card through my mobile, that could be the easiest and fast solution but I did not want to loss my files so, what I did, to solve this problem without lossing my data:

1. Take out the memory card from phone.
2. Put the card into SD card Reader, and insert into PC.
3. Just scan the memory card drive as we scan our hard drive partitions.

After scanning, the message appears that, your drive is scanned and some error were fixed then, I put the memory card into mobile phone. Not that every thing is working fine.

 

Solution of Opera mini not installing on China WiFi mobile phone

Today my friend bring his China mobile and told me that whenever he try to install Opera Mini latest on his mobile phone an error occurs that "Certificate Error" or Unable to Install app. I try to install Opera mini Online and Offline method but result was same.
Then finally problem was solved by simply one method, what I did, just Reset the phone to the factory settings and mobile restart mobile phone. then every thing was working fine.

Nokia 1110, 1112, 1600, 2310, 6030 hardware Solutions

Description:
This is the hardware solution pack of Nokia 1110, 1112, 2310, 6030, 1600 mobile phones

This pack containing following hardware solutions:

• 1110, 1112 signal IC jumper
• 1110, 1600 No Network pa jumper
• 2310, 6030 No Network pa jumper
• Antena switch jumper
• 1600 Network solution

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Nokia 1616 Hardware Solution

Description:

includes:
Insert SIM Card, Charging Not response, Local Mode, Hands free,
LCD and Keypad Light, Local Mode, MIC Solution, network, Ringer, Speaker, Torch light, Fake Charging.

Details:
include LCD problems also LCD light and keypad light. if charging not response follow the ways and solve your problem. speaker solution and big
problem insert sim solution included.

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Nokia 1650-1661 Hardware Solutions

Description:
Complete hardware solution collection of Nokia 1650 and 1661 mobile phones. Also 1200 and 1202 hardware solution included in this box.

Solution are given in image format, The arrow on circuit schematic image tells you about the problem place on circuit, and also its solution.

Given Solutions:

• LCD
• MIC
• Light
• Power
• Speaker
• Charging
• Keyped
• Test Mode
• Local Mode

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Nokia 1800 and 1616 hardware Solutions

Description:
This is the hardware solution pack of Nokia 1800 and 1616 mobile phones.

This pack containing following hardware solutions:

• 1800 Keypad Solution
• Handsfree Solution
• MicroPhone Solution
• Display Solution
• Charging Solution

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Nokia 2700c Hardware Solution

Description:
This is a complete hardware solution for nokia 2700c.

includes:
LCD, Bluetooth, Ear, Hands free, Keypad ways, Light
Local Mode, MIC Solution, MMC, network, Ringer, USB
Fake Charging and Camera Solution.

Details:
Fake or invalid Charging means that phone shows charging continue but battery still empty. Universal serial bus solution.

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