Computer Repair Guide

Problem: Chinese Android tablet hangs on boot. Android logo appears and then freezes. It shuts down after few seconds. Reason: The Android installation is corrupted. Solution: Reflash / install a new android firmware / OS. Applies to: Flytouch Android Tablet, Epad, Apad, Iped The one I repaired has the following specifications: VIA chipset 8505 / 300 mhz 256 mb memory 2 GB storage with camera vibrates at startup (unique for flytouch model) Pics: What you need: At least 128 mb microSD card Step-by-step Guide: 1. Download this file if you have the 256 mb version: http://www.filefront.com/17277089/EPAD256.1.988.3k.7z For 128mb, download this: http://www.filefront.com/17277251/EPAD128.1.988.3k.7z 2. Extract the script folder to your memory card. If your memory card is drive e, it should look like these: e:\script\ 3. While the tablet is off, insert the card to the card reader /slot at the bottom of your tablet. 4. Turn it on and wai...

Problem: Can't browse the Internet after installing or upgrading AVG 9.0 Symptoms: In some system, Local Area Connection (LAN) says the cable is unplugged even though it is plugged in. IPConfig command returns nothing. In the Device Manager under Network Adapters , there are several entries of AVG miniport driver and these entries have yellow exclamation mark . ( "WLAN Miniport (IP) - AVG miniport driver") Properties shows: "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19) Click Troubleshoot to start the troubleshooter for this device." You cannot uninstall the AVG miniport driver entries (remove or delete). Update and rollback doesn't work either. System Restore will not help. Screenshot: Culprit : The devices appear because they are called up by registry entries which should have been deleted as part of the AVG uninstallation Solution: U...

This is a common problem for laptops bought in Japan. Japanese laptop = Japanese OS . If you want to convert it to English operating system, you will face a very common problem after converting. Problem : After upgrading/converting your OS (Windows Vista to Windows 7), your Japanese laptop keyboard is not functioning correctly (different layout). The most common affected keys are the @ sign which is located along with number 2 in s tandard keyboard, (, :, +, Reason: Windows Vista and Windows 7 somehow identifies some Japanese keyboards as an English device. Solution: You will need to go to the Registry and tell Windows that you have the standard 106/109 Japanese keyboard instead of the English 101 version. Go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters and change the following entries to this value: LayerDriver JPN REG_SZ kbd106.dll OverrideKeyboardIdentifier REG_SZ PCAT_106KEY OverrideKeyboardSubtype DWORD 2 OverrideKeyboa...

I recently changed my WiFi router password due to security and the next time I use my Nokia 5800Xm to browse the internet, it won't let me connect to my router. The reason is the stored password on my phone. Nokia 5800 doesn't offer you to enter a new password if the stored password ('known") don't work. Here's a step-by-step guide to change the WiFi password on your Nokia 5800XM: Go to Menu > Settings > Connectivity > Destinations> Internet Now double-click on the WiFi connection name that you would like to edit. Double-click on the WLAN security settings Double-click Pre-shared key and input the new password for your WiFi connection.

Note: While this tutorial is for Windows 7 , this may also apply in Windows Vista If you're using the regular Mozilla Firefox , importing your bookmarks , saved passwords and browsing history into Google Chrome is a breeze. Unfortunately for Firefox portable user, Google Chrome doesn't recognize it as an import source. Here's a step-by-step guide on how you can import Mozilla Firefox Portable into Google Chrome in your Windows 7 machine (and possibly Win Vista). You will need to copy your profile data first from portable firefox to regular firefox: 1) Close any instances of Mozilla Firefox (portable). 2) Download and install the regular version of Mozilla Firefox. Get it here . 3) Launch the newly installed Firefox and close it. 4) Open up explorer (e.g. My Computer or any other folder). Type the following into the address bar and press enter %appdata%\Mozilla\Firefox\Profiles 5) Inside you will see a folder: something like 7raursp4 ....

Problem: After refilling the cartridge of your Canon MP198 / MP190 printer, there is still an error that says your colored or black cartridge is still empty. Solution: This is a common problem when you refill the ink cartridge of you canon printer. You can bypass this problem by pressing the Stop/Reset button on bottom right hand side of the printer for about 5 seconds until the display reads 1 again. This will bypass the ink level sensor but your machine won't know how much ink left in the tank. It's not a problem though because it will let you print. Do this everytime you refill your ink cartridge.

A typical Windows 7 install requires at least 16GB of free storage space, thus making it pretty much impossible to install on netbooks with Garfunkel storage. However, by using Virtual PC, Acronis true image and Vista PE, you can install Windows 7 OS on a device with as-low-as 2GB SSD. After installation, you will be left with mere 186MB of free space which may not enough for installing your apps. That said, it should be fun installing Windows 7 on a Celeron netbook released 2 years ago that came with with 512MB RAM and 2GB flash. Follow these steps: Step 1: Vlite your windows 7 install, you need to make it as small as possible in order to get it to fit on the 2GB hdd, (and even then its too big. More details later about this.) Alternatively use a shrunken version of 7 with your own product key. There are lots of guides on how to Vlite your Windows 7 install so I will not cover them here. Normally the Windows 7 installation process requires much more than 2GB hard ...

Problem: After installing Windows 7 on an Asus laptop, the built in camera output is upside down / inverted. Reason: This is a well known problem with Asus laptop. It seems that the generic camera driver in Windows 7 is not compatible with Asus' camera. I have here an Asus K501J series laptop and when I view my camera in Yahoo Messenger, the output is upside down. Solution: Download the updated driver from Asus support site . Search for your laptop model, and try every camera driver listed. There are usually 4 camera drivers listed/available. So, if the first did not work, try the next one. Solution 2: Edit Windows Registry. Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Sunplus SPUVCb\VIDEOPROCAMP. Change VFlip value to 1. Solution 3: If you're having problems in downloading your webcam driver, download and install ManyCam . This program is free and can flip and rotate your camera output. Also works with Gtalk, Skype, and other programs. Known Asus laptop models with this iss...

Scenario : Mouse and/or Keyboard not working after deleting entries in the Windows Registry (regedit) to fix CD/DVD problem (Upper and Lower Filters) Reason : There are three entries of Upper and Lower Filters in the registry. The first entry is for the CD ROM. This is the only entry you will need to delete in order for your optical drive to work. The second and third entry is for the keyboard and mouse and you should not delete it or your mouse/keyboard will not work at the next restart. Screenshots: Original upperfilters entry Mouse: Keyboard: Solution/s: System Restore can do the trick but obviously you cannot do it because your keyboard and/or mouse is not working. You can try this method instead: Restart your computer and before the Windows XP logo shows, repeatedly press F8. Choose Last Known Good Configuration . Try this several times if it doesn't work the first time. Or if you're just like me ( keyboard is working, mouse not ), navigate through the reg...

Error: Catalyst install manager has stopped working Windows can check online for a solution to the problem. Check online for a solution and close the program Close the program Debug the program Screenshot : Cause: An application that uses the Mfc80.dll module or the Mfc80u.dll module crashes after you install a product that updates the module version. Solution: In most cases choosing "Check online for a solution and close the program" will solve the problem. If not, you can try downloading this Microsoft fix and install it. Then try to uninstall Catalyst again.

Unlike other laptops, HP Pavilion N5445 hard drive is located under the keyboard. So you will need to remove it first to be able to replace it. Here are the instructions to disassemble this HP Pavilion N5445 laptop: 1. Unplug your laptop's AC adapted and remove the battery. 2. Remove the two (2) screws from the back panel located in the center of each hinge. 3. Open the LCD screen as far back at it goes. Use a small flat screwdriver to remove the top cover. 4. Unscrew the 4 screws that holds the keyboard and gently lift the keyboard. 5. Now you should see the hardrive sitting in the center. Remove the screws (4 of them) on each corner of the hard drive which connect it to the motherboard. 6. Gently lift or pull the hard drive by using the black ribbon at the top of the hard disk drive. 7. Once the hard drive is out, carefully remove the IDE connector that attached the hard disk drive to the motherboard. 8. Turn the hard drive upside down and rem...

How to disassemble IBM Thinkpad R31 Laptop | How to take apart Thinkpad R31 I recently repaired an IBM Thinkpad R31 Laptop with an error message about CMOS checksum being bad. This error is usually caused by a dead (empty) CMOS battery. This battery lasts for 3 to 5 years. Some says that it even lasts for 10 years. Whatever the case, you will need to replace the CMOS battery (also known as BIOS battery). The CMOS battery is usually located at the motherboard. Some under the laptop compartment while in other models it's located right underneath the keyboard. In the case of IBM thinkpad R31 laptop, it is located under the keyboard. So, you will only need to disassemble the laptop keyboard to have access to the CMOS battery. Here is the exact error message that show up once you open up an IBM Thinkpad R31 laptop that has a CMOS battery problem: Error Message: 0251 System CMOS checksum bad - Default Configuration used Screenshot: Solution: Change the CMOS batt...

How can you improve or maximize your laptop battery life? How can you prolong it's life expectancy of lifespan? These are very common questions for laptop/notebook user. Laptop / Notebook batteries are actually categorized as "consumables". They are expected to wear out in time. So, while you can extend their life expectancy, accept the fact that your laptop battery won't last forever, no matter what even when you're not using it. So, it is not a good idea to buy an extra battery now thinking that you can store it and use it once the original battery has degraded. It's better for laptop batteries to be used, rather than sitting on a shelve. So if you use a laptop, don't plugged it in all the time. Let it drain to about 40% and then recharge. Laptop battery lifespan or life expectancy Laptop batteries are Lithium-Ion or Li-ion. Lithium-Ion laptop batteries are rated for a useful life of at least around 400 life cycles. A charge cycle occurs when 1...

Utorrent Error : Error: The process cannot access the file because it is being used by another process. Screenshot: Symptoms : Downloading suddenly stops. There is a red X mark on the file that you are downloading. You see an error message that says "The process cannot access the file because it is being used by another process." Possible solutions: 1. This error message is usually caused by indexing services of some applications/programs. Most common culprit are Google Desktop and Roxio Media. So if you are suddenly experiencing this problem, try closing Google Desktop or Roxio (whichever is present in your system). If you don't need these two programs, you can completely uninstall them. 2. Try to disable Windows caching on disk option in Utorrent. Options > Preferences > Advanced > on the right scroll down to diskio.flush_files then click False > OK If that didn't work Select Options, Preferences then Advanced and uncheck "Disable Win...