Samsung P1000 Galaxy Tab USB Not Charging Solution

This is the hardware repair solution for Samsung Galaxy Tab P1000 if it doesn't charge. This may only works if the device still turns On and the battery is not fully drained or already weak or damaged. A fully discharge battery will unable to charge up, so ensure that the battery is still in working condition before applying this solution. You may also consider that the wall or dock connector charger is also working fine.

So, lets take a look how the troubleshooting flows on the Samsung Galaxy Tab Not Charging problem:

1. On the 30 pin dock connector the input charge voltage is on pin #7 and #8. You can check and read it using a multimeter while the wall or USB charger is being inserted. If the voltage is missing or no readings the possible faulty is the charger itself but if the voltage is okay proceed to step 2.

2. On the charger voltage detector chip Pin #6 and #7 check and read the VBUS output voltage. If the voltage is missing, check the chip for possible crack, open etc., rework or replace if necessary. If the voltage is okay proceed to step 3.

3. Check the VBAT(battery voltage) on the capcitor near the charger switching IC. If the voltage is missing or no readings the possible faulty is the charger switching IC. If the voltage is okay, proceed step 4.

4. Check the VUSB output voltage on the analog multiplexer IC which is around 5V up on the capacitor. If the voltage is missing, check the chip for possible damaged and etc. Replace if necessary.

Samsung P1000 Galaxy Tab USB Not Charging Repair Solution

Procedure to Upgrade Google Nexus One to Gingerbread 2.3.4 Update

Here's the step by step procedure how to install the latest 2.3.4 update on Samsung Google Nexus One:

Please Note : If you got a super user access in the previous 2.3.3 update will be lost after
switching to this new 2.3.4 update. You may also need to reconfigure your Intenet  Settings to regain access to the internet if the Internet APN settings lose after this process.

Procedure installing the 2.3.4 firmware on your Google Nexus One:

1. Download the the 2.3.4 firmware update for Nexus One on your computer. 
2.Connect the phone to PC using the USB data cable.
3. Copy the firmware file into your phone( Do not unzip it, rename or modify the file name or it will not be recognized by the phone that it is an update file.
4. Turn Off the Google Nexus One, once the file is already copied. Then remove the USB data cable connection.
 5.While the Google Nexus One is Turned OFF: Hold down the trackball and then press the Power button.
    The phone will then turn on into RECOVERY MODE.

6. Once the phone already set into recovery mode, you'll see that the device will be booting in the white screen with the Android robots on the skateboards after which you will have to select the “Bootloader” option and then in the next screen you will have to select “Recovery” option.

7. Now, press the power button and volume up button at the same time, after that use the trackball  to select “Apply sdcard:update.zip” and then select the file which you have copied in the phone.

Nexus One Recovery Mode

- Just select the same and select the firmware file which you have copied into the  phone and then press the “Power” button to select the same.
-Once the firmware update zip been selected, It will automatically start the process. just wait a couple of minutes until it will completely installs the update.

- If the update installing process finishes the phone will then again return to recovery mode menu.
 Just select the  “reboot” to reboot the same. Then the phone will then reboot, if it will ask for language, just select the same...

That's it and done....

Samsung Galaxy Tab Dock Cable Connector Pinout

This is the technical info of Samsung Galaxy Tab Pinouts for digital and analog I/O on the 30 pin dock connector. This is the serial cable connection on Samsung Galaxy Tab for USB connection, charging, accessories connection and for debugging and logging etc.

Click image to view hi-res file

Samsung Galaxy Tab 30 Pin Connector Pinout

Pin# Signal to/from device
1 Gnd P
2 Gnd P
3 USB_DP_CON I/O
4 USB_DM_CON I/O
5 IF_CON_SENSE I
6 V_ACCESSORY_5.0V P
7 V_BUS_1 P
8 V_BUS_1 P
9 VOUT_CHARGER P
10 VOUT_CHARGER P
11 no connection
12 no connection
13 ACCESSORY_ID / USB_ID I
14 ACCESSORY_INT I
15 Gnd P
16 Gnd P
17 MHL_DP I/O
18 MHL_DM I/O
19 MHL_ID I
20 IF_RXD I
21 IF_TXD O
22 no connection?
23 AP_TV_OUT O
24 REMOTE_SENSE I
25 no connection
26 no connection
27 EAR_L_CRADLE O
28 EAR_R_CRADLE O
29 3.5_INT_TEST I
30 Gnd P

Samsung Galaxy Tab How to Root Guide

Here'a are some steps and procedures on How to Root The Samsung Galaxy Tab.

Rooting the Tab opens up a world of possibilities that would otherwise be out of reach. Root access gives you complete control of the system, which means you can do much more with the device than Samsung and your carrier probably want you to do. It lets you install awesome root-only apps, uninstall apps that can't normally be removed, do complete backups (Nandroid), flash custom ROMs, apply themes, change boot animations, and more.. 

Rooting the Galaxy Tab Using Z4root:

There's more than one way to root the Galaxy Tab, but the easiest method is to use a one-click root app called z4root. One-click root apps aren't new (Universal Androot, for example, has been around for months), but z4root is what I used to root my Tab so it's what I'm recommending.

Here's how to use it to root the Galaxy Tab:

1. Download z4root from Android Market (direct link) and install it.

2. Enable USB debugging on your Tab by pressing the Menu button then tapping Settings -> Applications -> Development -> USB debugging.




3. Open z4root and press the "Root" button.





4. Don't panic when the Tab restarts. It's supposed to do that.

When it's fully booted, you won't get any kind of confirmation of your success. Everything will look exactly the same. Open z4root again, though, and you'll see this:

Rooting the Galaxy Tab Using Super One Click:

Requirements:

• Download KIES Software downloaded from here
• Download SuperOneclick from here

Procedure:

• Connect Galaxy Tab to the computer and sync with KIES once, with debugging mode disabled
• Disconnect from Computer
• Enable debugging mode (Settings > Applications > Development > USB Debugging)
• Connect again to PC but click on home button so that you do not connect to KIES this time
• Launch the SuperOneClick.exe program which you have downloaded above
• Click on root and wait for some time
• That’s it your tab has root access now!

Have fun!

Samsung P1000 Galaxy Tab Unable to Power On problem Solution

Here's a solution for Samsung P1000 Galaxy Tab that unable to power or turns On or it doesn't charge responds anything at all and the phone seems a dead set device. This solution can only be applied if you already tried the firmware calibration but the phone is totally doesn't Turns On.

The Samsung P1000 Galaxy Tab Power On Doesn't work?
1. Check the battery voltage it should be more than 3.6V, replace it or try to use another working battery.
2. Check the Power Switch Flex wire assembly for possible damage. Replace if damaged.

3. Check this voltages on the capacitors
VARM = 1.2V
VINIT = 1.2V
VCC_PDA = 1.8v
VALIVE = 1.2V
VCC = 2.8
If this voltage reading are missing, check the Power Management IC for possible open, short, cracked, damaged, etc.
Re-work, replace the PMIC of necessary

4. Check the clock oscillator. replace it if necessary.

Samsung Galaxy S I9000 Not Charging Problem Solution

Here's a solution for not charging problem on Samsung Galaxy S GT-I9000 also known as Samsung I9008 Galaxy S for Chinese market, with Android OS, v2.1 (Eclair), upgradable to v2.3. This solution may help as a guide for repair if the device suffered water or liquid damaged and result to not charging or doesn't show charging indications if the battery wall charger is plug-in or inserted. This may not help and cannot be used for firmware related issues, so check and try to restore back or upgrade your device firmware if you have firmware problems, such as custom roms etc.


The picture below shows some components of the Samsung I900 Galaxy S, it points a test spots where to start a check up or troubleshooting procedures. It also show us which and what components needs to check first.

Samsung Galaxy S I9000 Not Charging Problem Solution

Here's some hints on how to fix the Samsung I9000 Galaxy S Not Charging Problem:
1. Ensure that the battery charger you are using is properly working or try to use another one.
2. Visually check the USB pin connector for possible damaged. Clean it if oxidized, re-solder, or replace it if necessary. You can read the VBUS charge voltage at the pin #1 if the USB connector is okay.
3. Check or read the VBUS Charge IN voltage this is the output from the VBUS charger control IC.
4. Re-heat, rework the VBUS IC if the 5V is missing. Replace if necessary.
5. The power management IC will be the next option to re-work at if the procedures above doesn't solved the problem.

LG Optimus S,V,T and One Recovery Flasher [ROMtools] Software: Download

This Flasher tool is a big help to install the LG Optimus S, V, T ROM firmware and Flash recovery. It will also help you install all the needed drivers as well as obtain root privileges.
Instead of using ADB and typing out ADB commands, this program combines some of the most common tasks we perform with ADB and automates them for you, according to the creator of this software mmmark111

How does this works on LG Optimus S,V,T and One Android Phones?

Flash ROM - Place a ROM in the 'ROM' folder renamed rom.zip. Hit enter and the zip will get flashed to your phone automatically

Flash Recovery - Will help you flash a recovery to your phone. For the Optimus V users, it will help you install all the needed drivers as well as obtain root privileges. Optimus T, S, and One phones will be able to flash a recovery.

Wipe dalvik-cache - Self explanatory .

Mount /system r/w - Allows read/write access to /system

Push ROM to SD card - Self explanatory (pushes to root of sd)

Push framework-res.apk - Pushes framework-res.apk to /framework, wipes dalvik-cache, and reboots the phone for you.

Push bootanimation.zip - Will remove boot animation and replace with one of your choice. (removes from /data/local as well as /system/media)

Reboot - Reboot

Reboot into Recovery - Obv.

Recoveries
CWMA v1.2518.4 for V and S (rename included recovery to vrecovery.img)
drellisdee's Recovery for T and One (thread with dl link will open automatically)

Software Installation and Recovery Instructions
Note: You're responsible for your own actions Proceed with caution!
- Download
- Unzip the folder somewhere (desktop is easy)
- Double click RecoveryFlasher.exe
- Choose 'flash recovery'
- Place your phone in debug mode >setting>applications>development>USB debugging
- Choose what you want to do
- Follow the prompts and hit "any" key when told
- Your phone will reboot into the recovery for you, and from there you can mount your sdcard and transfer a new ROM to flash. Or even easier, use the new "Flash ROM to phone" feature

Changelog
v2.3.1
- Complete overhaul
- All original features retained
- Can now flash ROM for you
- Wipe dalvik-cache option
- Push framework-res.apk added
- Push bootanimation.zip added
- Beta support for Optimus T recovery added
- Fixed Optimus One issue
- More code cleanup and stability improved
- Tons of other BS
- Download ROMTools v2.3.1 with Optimus V drivers
- Download ROMTools v2.3.1 without drivers

v1.3
- Beta support for Optimus One recovery added
- Useful tools added
---- Reboot
---- Reboot into recovery
---- Mount /system
---- Push ROM to SD Card (place ROM in the 'ROM' folder and it will be pushed to the root of your SD card)
- Code cleanup
- Lots of code rewritten
- File cleanup
- Stability improved
- New font color

- New font color
- Progress bar added
- Drivers now optional
- Other junk I'm forgetting
- Download Recovery Flasher v1.3 (without V drivers)
- Download Recovery Flasher v1.3 (with V drivers)

FAQ
Can I use this with a different recovery?
-Yes. Any recovery can be used for the supported devices.
-To use an alternate recovery for the V or S, rename the new recovery to vrecovery.img and replace the 'vrecovery.img' included with the new one.
-For the Optimus One, the recovery needs to be named grecovery.img.
I don't understand the version numbers. Why did some numbers get skipped?
-First digit represents a huge change. Second represents new features. Third represents a bug fix
-2.3.1 = Second huge update with 3 feature revisions and one bug fix