SAMSUNG GALAXY J1 (SM-J100F/SM-J100FN/SM-J100H/SM-J100H-DD/SM-J100H-DS/SM-J100M/SM-J100MU) with Safety Hard Reset PATTERN UNLOCK

SAMSUNG GALAXY J1 (SM-J100F/SM-J100FN/SM-J100H/SM-J100H-DD/SM-J100H-DS/SM-J100M/SM-J100MU) with Safety Hard Reset PATTERN UNLOCK
SAMSUNG GALAXY J1 (SM-J100F/SM-J100FN/SM-J100H/SM-J100H-DD/SM-J100H-DS/SM-J100M/SM-J100MU) with Safety Hard Reset
Tips and tricks for SAMSUNG GALAXY J1, this phone have several type especially for GSM network, SAMSUNG GALAXY J1  3G or  SAMSUNG GALAXY J1 4G and also known as (SM-J100F / SM-J100FN / SM-J100H / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU). This phone have 4.3 inches LCD screen with Dual Core processor at 1.2 Ghz clock speed. This processor are not too fast but enough to run several daily applications like Facebook or Instagram or Path or Whatsapp or BBM or Line Messenger or WeChat and several other applications. For daily documentations, SAMSUNG GALAXY J1 camera is 5 megapixel with autofocus for better images and LED flash for help give additional light at low light situations.

What is Advantage of  SAMSUNG GALAXY J1 (SM-J100F / SM-J100FN / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU) Specifications:
GSM 3G HSDPA
Single and Dual Simcard GSM-GSM on together
LCD 4.3 inches
Internal memory 4 GB
RAM 512 MB
External memory microSD, up to 128 GB
Main Camera 5 MP, 2592 х 1944 pixels, autofocus, LED flash of type have 8 MP camera
Front Camera for video conference
Processor Dual-Core 1.2 GHz Cortex-A7
Operating system Android OS, v4.4.4 (KitKat)
Battery Li-Ion 1850 mAh battery

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY J1 (SM-J100F / SM-J100FN / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU) hang or not responding or malfunctions or stuck or freezing or bricked ?
SAMSUNG GALAXY J1 have dual core processor, this specifications is not too high for running many applications but not too bad if only running standard chatting or social media and office working applications. When the first time we activate this phone, SAMSUNG GALAXY J1 already have several factory default applications, but we can add or install more from Google Play Store either free or purchase one. But some applications from Google Play Store can make trouble if install at our phone, because sometime they have virus or some other mal-ware or spyware or ad-aware. These kind of applications can make our SAMSUNG GALAXY J1 hang or stuck or bricks or broken or blank or freeze. Some users also get trouble with boot logo loop or LCD touch screen not responding. At this time we have to force soft reset or force shutdown or restart or reboot to remove temporary files or cache from trouble applications. If this problem still happen, then we have to do hard reset or master format. Please do not forget to backup all important data at SAMSUNG GALAXY J1 because doing hard reset or reformat will remove all of them.

How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY J1 (SM-J100F / SM-J100FN / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU) ?
What should we do when our SAMSUNG GALAXY J1 get trouble or hang or LCD touch screen not responsive? Then we have force shutdown or force soft reset or reboot to restart all applications from beginning then remove temporary files and caches. Please remove the back case cover and unplug the battery, wait about 5 seconds and then put again the battery at its positions then press POWER button to turn on this phone. This process are safe because it will not remove any important data and applications. We also can do soft reset or restart procedure any time when this phone still work normally, press and hold POWER button until pop-up menu appear, then choose Restart / Reboot / Turn off / Power off, after SAMSUNG GALAXY J1 fully turn off, then you can press POWER button to turn on again.

#Option 1, How to Hard Reset SAMSUNG GALAXY A5 SAMSUNG GALAXY J1 (SM-J100F / SM-J100FN / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU) with software menu:
Turn on SAMSUNG GALAXY J1 (SM-J100F / SM-J100FN / SM-J100H-DD / SM-J100H-DS/ SM-J100M / SM-J100MU)
Make sure SAMSUNG GALAX

Symbols, Pins, and Construction Transistors

Symbols, Pins, and Construction

Transistors are fundamentally three-terminal devices. On a bi-polar junction transistor (BJT), those pins are labeled collector (C), base (B), and emitter (E). The circuit symbols for both the NPN and PNP BJT are below:

The only difference between an NPN and PNP is the direction of the arrow on the emitter. The arrow on an NPN points out, and on the PNP it points in. A useful mnemonic for remembering which is which is:

NPN: Not Pointing iN

Backwards logic, but it works!

Transistor Construction

Transistors rely on semiconductors to work their magic. A semiconductor is a material that’s not quite a pure conductor (like copper wire) but also not an insulator (like air). The conductivity of a semiconductor – how easily it allows electrons to flow – depends on variables like temperature or the presence of more or less electrons. Let’s look briefly under the hood of a transistor. Don’t worry, we won’t dig too deeply into quantum physics.

A Transistor as Two Diodes

Transistors are kind of like an extension of another semiconductor component: diodes. In a way transistors are just two diodes with their cathodes (or anodes) tied together:

The diode connecting base to emitter is the important one here; it matches the direction of the arrow on the schematic symbol, and shows you which way current is intended to flow through the transistor.

The diode representation is a good place to start, but it’s far from accurate. Don’t base your understanding of a transistor’s operation on that model (and definitely don’t try to replicate it on a breadboard, it won’t work). There’s a whole lot of weird quantum physics level stuff controlling the interactions between the three terminals.

(This model is useful if you need to test a transistor. Using the diode (or resistance) test function on a multimeter, you can measure across the BE and BC terminals to check for the presence of those “diodes”.)

Transistor Structure and Operation

Transistors are built by stacking three different layers of semiconductor material together. Some of those layers have extra electrons added to them (a process called “doping”), and others have electrons removed (doped with “holes” – the absence of electrons). A semiconductor material with extra electrons is called an n-type (n for negative because electrons have a negative charge) and a material with electrons removed is called a p-type (for positive). Transistors are created by either stacking an n on top of a p on top of an n, or p over n over p.

Simplified diagram of the structure of an NPN. Notice the origin of any acronyms?

With some hand waving, we can say electrons can easily flow from n regions to p regions, as long as they have a little force (voltage) to push them. But flowing from a p region to an n region is really hard (requires a lot of voltage). But the special thing about a transistor – the part that makes our two-diode model obsolete – is the fact that electrons can easily flow from the p-type base to the n-type collector as long as the base-emitter junction is forward biased (meaning the base is at a higher voltage than the emitter).

The NPN transistor is designed to pass electrons from the emitter to the collector (so conventional current flows from collector to emitter). The emitter “emits” electrons into the base, which controls the number of electrons the emitter emits. Most of the electrons emitted are “collected” by the collector, which sends them along to the next part of the circuit.

A PNP works in a same but opposite fashion. The base still controls current flow, but that current flows in the opposite direction – from emitter to collector. Instead of electrons, the emitter emits “holes” (a conceptual absence of electrons) which are collected by the collector.

The transistor is kind of like an electron valve. The base pin is like a handle you might adjust to allow more or less electrons to flow from emitter to collector. Let’s investigate this