This is how to bypass the Key Board ESD of Sonyericsson W810. Its always recommended to perform full flash with the latest firmware to ensure that this is not because of a firmware damage. Download
Saturday, December 10, 2011
Nokia C1-01 USB Flashing with HWKuFS
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| The procedure of flashing Nokia C1-01 with USB interface |
In the past most of mobile phone was flashed via F-Bus cables but in latest BB5 phones it is not always need to connect via F-Bus cable as the are supported in USB interface to flash even for unlocking. And some of BB5 phone dose not support to flash with USB interface if the phone is totally died while others support even the phone is totally died called did USB support. The procedure of flashing Nokia C1-01 with USB interface for those who are newbies in with HWeKuFS Flash Box Download
Friday, December 9, 2011
K850i Disassemble Video
K850i has a complex mechanical parts because of the high quality camera it has. See how to Disassemble
without any damage. Download
Thursday, December 8, 2011
Universal F Bus Cable
BB5 Erase Files
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| Here is BB5 erase files Please conform that you have selected the right file otherwise your phone will be killed. Download |
Free Antivirus for Symbion 5th Edition
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| Free Antivirus for Nokia 5800, X6, all kind of Syb 5th Edition Download |
Working with SMD Component
Introduction
Surface mount devices (SMDs) are used in a growing number of commercial and industrial products. Due to their small size (see Figure 1), prototype manufacturing, rework, and repair can be difficult and are best performed using specialized techniques specific to this technology. Learning these techniques will help you succeed when working with these small components.
Why Use Surface Mount Technology?
Surface mount devices (SMDs) are used in a growing number of commercial and industrial products. Due to their small size (see Figure 1), prototype manufacturing, rework, and repair can be difficult and are best performed using specialized techniques specific to this technology. Learning these techniques will help you succeed when working with these small components.
Why Use Surface Mount Technology?
SMDs have improved performance over through-hole components due to their smaller size, shorter internal leads, and smaller board layouts. These factors reduce the circuit’s parasitic inductance and capacitance. SMDs can also be more cost effective than traditional through-hole components due to the smaller board size, fewer board layers, and fewer holes.
Transistors
Function
Transistors amplify current, for example they can be used to amplify the small output current from a logic IC so that it can operate a lamp, relay or other high current device. In many circuits a resistor is used to convert the changing current to a changing voltage, so the transistor is being used to amplify voltage.
A transistor may be used as a switch (either fully on with maximum current, or fully off with no current) and as an amplifier (always partly on).
The amount of current amplification is called the current gain, symbol hFE.
Types of transistor
There are two types of standard transistors, NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transistor. Most transistors used today are NPN because this is the easiest type to make from silicon. This page is mostly about NPN transistors and if you are new to electronics it is best to start by learning how to use these first.
The leads are labelled base (B), collector (C) and emitter (E).
These terms refer to the internal operation of a transistor but they are not much help in understanding how a transistor is used, so just treat them as labels!
A Darlington pair is two transistors connected together to give a very high current gain.
A transistor may be used as a switch (either fully on with maximum current, or fully off with no current) and as an amplifier (always partly on).
The amount of current amplification is called the current gain, symbol hFE.
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| Symbols of Tramsistors |
Types of transistor
There are two types of standard transistors, NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transistor. Most transistors used today are NPN because this is the easiest type to make from silicon. This page is mostly about NPN transistors and if you are new to electronics it is best to start by learning how to use these first.
The leads are labelled base (B), collector (C) and emitter (E).
These terms refer to the internal operation of a transistor but they are not much help in understanding how a transistor is used, so just treat them as labels!
A Darlington pair is two transistors connected together to give a very high current gain.
General Power Troubleshooting With Power Supply
Phone can be caused by a dead Hardware and Software
The first step checks the power suppliers, whether the phone is dead in the Hw or Sw. How:
Connect the cable from the power supply connector to the battery of the phone at least 3 cable, the order negatip, BSI and positive. (black, green and red) - Navigate volt power supply at 3.6 V (or in accordance with its HP-tolerance 0.5 V). In the mobile phone off, press the keys on. When the ampere when the button is pressed on, it still means that there is a problem on its hardware (HW), the checks need to be components of the on / off until the battery. When the ampere when the button is pressed on, ride around - + 50 mA, then the problem is happening is a problem the software (SW), then the need to do is re-programmed phone (flash) program or upgraded to a higher version.
Power Supply:
The first step checks the power suppliers, whether the phone is dead in the Hw or Sw. How:
Connect the cable from the power supply connector to the battery of the phone at least 3 cable, the order negatip, BSI and positive. (black, green and red) - Navigate volt power supply at 3.6 V (or in accordance with its HP-tolerance 0.5 V). In the mobile phone off, press the keys on. When the ampere when the button is pressed on, it still means that there is a problem on its hardware (HW), the checks need to be components of the on / off until the battery. When the ampere when the button is pressed on, ride around - + 50 mA, then the problem is happening is a problem the software (SW), then the need to do is re-programmed phone (flash) program or upgraded to a higher version.
Power Supply:
Components in side a Mobile Phone
Battery
Function as a source of electricity Flow / Voltage required to provide electric current to the Aircraft phone
EEPROM
Function as a source of electricity Flow / Voltage required to provide electric current to the Aircraft phone
EEPROM
Main data storage area or a permanent factory data, and does not work with or the absence of electric current on the phone, because the power has withdrawn. While lying there on th
Regulator IC
To set the voltage, so that can be arranged according to the needs of each relevant component, and also as control from IC Charging is controlled by the CPU.
IC CHARGE
Components that work otomat at the time of charging and it works only for the voltage Battry which is controlled by the CPU through IC Regulator
IC AUDIO
As a function of the voice signal processing incoming RF IC's, and be forwarded to the Speaker, to strengthen the sound vibrations that have been changed into vibration Mic electricity and forwarded to RF IC, run the command from the CPU and the IC, there are Audio PCM (Pulse Code Module) and EEPROM read function code that signals coming from the operator to adjust the IMEI Ponsel also store data that is permanent, such as: IMEI, Phone Code, Sec.Code
LCD (Display Liquit Cell)
This component is functioning as a tool yanga will display all the activities / activities of the Aircraft on the phone
Key Pad
This component is functioning as a tool that provides the data to the CPU to the process and will be sent to other components related to the Aircraft phone
Interface IC
Function as a data controller by the CPU for Vibrator, buzzer, lights and a switch in the automatic phone Aircraft
J.A.F Service Manual
There is brife discription about the option of J.A.F. Such as Read PM, Self Tests, File Sys Format: etc.
So keep reading.
So keep reading.
You must select the option/s that do you want to perform and then press Service button. Let's describe the functions
Read PM:
PM or Permanent memory it's a memory inside the phone with low capacity (I think it's around 1MB. And it contains security and setup options. With this function we will get a copy of the content inside the phone that can be used in case of Software problems.
You must put the address that you want to read of the PM (0 to 255)
Read PM:
PM or Permanent memory it's a memory inside the phone with low capacity (I think it's around 1MB. And it contains security and setup options. With this function we will get a copy of the content inside the phone that can be used in case of Software problems.
You must put the address that you want to read of the PM (0 to 255)
Wednesday, December 7, 2011
Semiconductor Devices
Our statements above about charge are not wrong, but they are simple and incomplete. In order to understand how semiconductor devices work one needs a more complete description of the nature of charge in the real world. Charge does not exist independently; it is carried by subatomic particles. For this discussion we will be concerned primarily with electrons, which carry a negative charge of 1.6 � 10-19 C , the minimum amount of charge that can exist in isolation. At least, no one has found any smaller amount than this fundamental quantum of charge.
Capacitors
Like resistors, capacitors can be joined together in two basic ways: parallel and series. It should be obvious from the physical construction of capacitors that connecting two together in parallel results in a bigger capacitance value. A parallel connection results in bigger capacitor plate area, which means they can hold more charge for the same voltage. Thus, the formula for total capacitance in a parallel circuit is:
CT=C1+C2...+Cn ,
the same form of equation for resistors in series, which can be confusing unless you think about the physics of what is happening.
The capacitance of a series connection is lower than any capacitor because for a given voltage across the entire group, there will be less charge on each plate. The total capacitance in a series circuit is
CT={1{1C1}+{1C2}...+{1Cn}}
Again, this is easy to confuse with the formula for parallel resistors, but there is a nice symmetry here.
Resistors
A linear resistor is a linear, passive two-terminal electrical component that implements electrical resistance as a circuit element. The current through a resistor is in direct proportion to the voltage across the resistor's terminals. Thus, the ratio of the voltage applied across a resistor's terminals to the intensity of current through the circuit is called resistance. This relation is represented by Ohm's law:
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| A Resistor |
Objective
Mobile phone repairing is a hard work if there isn't proper way to find necessary technical information,
Although there is lots of web sites and forums regarding this, its always not easy to find needed information in the time we want. So we attempt to give all the information from one place for your convince.
Although there is lots of web sites and forums regarding this, its always not easy to find needed information in the time we want. So we attempt to give all the information from one place for your convince.
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