Introduction:

In this tutorial we will learn how to get access to your kingview project if you have missed or forget your project password.

Disclaimer: This tutorial is for educational purpose only, please do not use if the project is locked by the third person.

Instructions:

• Step 1: Take backup of your project and make changes to copied files and not to the original program.

• Step 2: Download any hex file editor. (In this tutorial we are using WinHex editor).

• Step 3: Open tagname.db file from program folder with hex editor.

• Step 4: As shown in picture bellow, change these hex values to zero.

• Step 5: Save the tagname.db file in hex editor and close it.

• Step 6: Now you can open the project in kingview software without password.

Note: With this trick, you can get access to project tags and communication data. But you will still need password to get access to the pages. Also you will not be able to change the password without knowing the original password.

If you want to fully unlock the project, you can take paid help from any expert freelancers or you can simply reach out to us with the project files. email

Introduction:

Solid state drive is a type of storage device that uses integrated circuit assembly to store digital data in it. Unlike conventional hard disk drives, SSD’s does not consist of mechanical moving parts which makes it more reliable and long lasting than conventional hard disk drives.

Advantages and Disadvantages of SSDs over HDDs:

Advantages:

• Solid state drives are way faster than the hard disk drives. HDDs can copy data at maximum 150MB/s, while common SSDs can copy the same data at 500MB/s. Also, some latest PCIe SSD’s can go more than 5500MB/sec transfer speed.
• Lifespan of solid state drive is longer than HDDs. Hard disc drives tend to last for around 5years, while SSD’s can last more than 10years.
• HDD’s has moving parts inside so they make little noise at the time of working. SSD’s are super quiet.
• SSD’s are very light in weight as compared to HDD’s.
• Power consumption of a solid state drive is very less as compared to a hard disk drive.

Disadvantages:

• The measure disadvantage of a solid-state drive is the cost. An SSD can cost more than double the cost of an HDD.
• Inability to recover old lost data. Which is possible in conventional hard disk drives.

Types of Solid-State Drives:

Solid state drives are available in two interfaces, one is SATA SSD and another is PCIe SSD.

SATA Solid State Drive:

SATA is one the most widely used interface in the industry. Latest SATA III 3rd generation standard provides 6Gb/s bandwidth with up to 550Mbps of read write speed. SATA SSDs are available in different sizes, shapes and slots, details are described below.

2.5inch SATA SSD: 2.5inch SATA SSD is a one-to-one replacement of conventional SATA HDD drive. It can give you up to 500mbps transfer speed. With SATA SSD you can upgrade any HDD laptop or desktop computer to SSD without any modification. (Desktop computers may require some reduction brackets)

mSATA SSD: A mSATA SSD is smaller in shape as compared to 2.5inch standered SSD’s. Also, the power consumption of mSATA SSD is comparatively less. These drives are designed to use in battery operated devices like laptops, notebooks and tablets, because of its small shape and power consumption advantage. mSATA SSD can provide data transfer rate up to 550mbps. mSATA SSDs are available in two sizes, standered size mSATA and half mSATA.

M.2 SATA SSD: M.2 is a next generation standard which provides both SATA or PCIe interface, one at a time. M.2 SATA SSD come in different sizes like 2280, 2260, 2242, where 22 represents the width in mm and next two numbers represent the length. M.2 SATA SSDs are generally comes in B+M key interface.

PCIe Solid State Drive:

PCIe interface SSDs provides many advantages than a SATA interface SSDs. The biggest advantage is speed. A latest 3rd generation SATA SSD can reach maximum 550Mbps read write speed, however a PCIe interface SSD can reach up to 3500Mbps speed.

NVMe SSD: NVMe (Non-volatile Memory Express) provides high bandwidth and very high data transfer speed in very low power consumption. NVMe SSD can reach up to 3000Mbps of read write speed. NVMe SSD comes in M.2 interface with different sizes like 2280, 2260, 2242, 2230, where number 22 represents the width in mm and next two numbers represent the length. NVMe SSD comes with M-key interface, which is only compatible with M key slotted system.

AHCI SSD: AHCI (Advanced Host Controller Interface) was widely used in mid period of SATA and NVMe, it was originally designed for use in conventional hard disk drives. The working structure of AHCI SSD layers between SATA and PCIe interface. AHCI was popular because, unlike common memory structure, AHCI allows SSDs to support native command queuing (NCQ) command set.

AIC SSD: AIC (Add in Card) SSD is compatible with your desktop computer PCIe port. So, if you don’t have dedicated M.2 SSD socket in your motherboard but you still want to use high speed NVMe SSD, then go for AIC SSDs. These SSDs will slide in directly in standard PCIe port. AIC SSD functions same as M.2 NVMe and provides same lightning-fast speed without having M.2 port on your system.

M.2 Kays and Slots

All M.2 modules are keyed in specific way to prevent incorrect insertion of module cards into female slot on the host. M.2 SSDs generally uses three common keys i.e., B-key, M-key & B+M-key. You can find key type printed on the edge of module card near golden connector pins.

In above picture, module card on the left shows NVMe SSD with M-key slot, which is compatible with only M-key female sockets on the host. Module card on the right shows M.2 SATA SSD with B+M-key slot, which is compatible with both M-key and B-key female sockets on the host.

Choose between M.2 M key or M.2 M+B key SSD

Considering the performance, you should choose M.2 M key SSD for the best results. But before getting your SSD make sure what type of slot is available in your computer.

In a computer, there is only a M.2 M key socket, or a M.2 B key socket will be available and not M.2 M+B key socket.

Let’s come to the compatibility of slots. M.2 M key slot is compatible with both M key SSD and M+B key SSD, But M.2 B key slot is only compatible with M+B key SSD.

Reason of Error:

Most of the time this error appears because of bad sectors in hard disk or because of any physical damage.

Solution:

In this case you can not repair the hard disk at your home. Unfortunately if you stuck in such situation, you should not keep trying installing windows again and again in same hard disk. It may damage your hard disk fully and you will not be able to even backup your important data anymore.

The best option is to connect this hard disk with working windows computer as secondary storage using extra SATA & power cable, and backup your data first. If you want to backup large amount of data from the disk, try using disk clone software to backup the entire hard disk, this can save your time too.

Once you done with the backup process, you can try running diagnose and repair tool to check the health of your disk or if your hard disk is in warranty period then prefer to send it back to manufacturer, they will repair it for you or else they will replace it with new hard disk.

Telnet is a protocol that helps you to connect to remote computers and local network computers over a TCP / IP ports or networks. In windows operating system, telnet client is disabled by default. So, you need to enable it from windows features.

In this project i am going to explain you how to build your own WiFi repeater to extend your home WiFi signal strength. This device is very easy to make and very handy to use. You can use this device at school, college, office or Cafe to extend the WiFi signal without buying expensive WiFi modems from the market.




Components you will need:

1. ESP-01 or NodeMCU
2. ASM1117 3.3V voltage converter IC
3. Male USB connector
4. USB-UART adapter for programming ESP-01
5. Android or iOS phone to configure settings.

Circuit Diagram for Programming ESP-01 : 

Steps: 

1. 1. Connect ESP-01 to UART adapter as shown in above diagram.
   2. Download firmware files form the bottom of the page, We will flash these files to ESP-01 using ESP flash tools.
   3. Firmware files are in rar folder, So unrar firmware files first and then open ESP flash download tools.
   4. Browse downloaded firmware files into given location as shown in bellow picture and write down where do you want flash the particular file, i.e select 0x00000.bin file and then write location to flash @0x00000 after that select 0x10000.bin file and locate it to 0x10000. (refer bellow screenshot for example)
   5. select COM port and hit START button. (If you dont know how to use flash tool, Check this link on Getting started with ESP8266 to flash ESP-01)
   6. After flashing firmware to esp-01, disconnect the circuit and connect USB male port to ESP-01 as given in bellow circuit diagram.
   7. Now you can power this circuit using any 5v USB wall adapter. So power up this circuit and follow the further steps for configuring WiFi AP settings.
   8. Download Telnet Client Terminal application in your phone. Download links are given in download section at the bottom of this page.

1. Power up the circuit, default device will create open access point with name MyAP without any password and default IP will be 192.168.4.1, Open WiFi settings in your phone and connect this open access point.
2. Open Telnet Client Terminal in your phone and add two fields as IP: 192.168.4.1 and Port: 7777, hit connect button.
3. If everything is ok, terminal will show connected. write command show and hit enter. It will show the current name and password of device STA and AP as shown in bellow screenshot.
4. Use these commands to update the username and password of your STA and AP.

• set ssid XXXXXXXX    (your home router SSID)
• set password XXXXXXXX   (your home router password)
• set ap_ssid  XXXXXXXX   (new access point name)
• set ap_password  XXXXXXXX   (new access point password)
• save    (save configuration)
• reset   (reset device)
• show     (this will show updated setting of your device, i.e your routers and access point  username and password)
• quit     (terminates current remote session)

You are now done with the repeater configuration, reset the ESP once and it will connect your home router with updated ssid and password at the same time it will create an access point with your new access point name and password.

Downloads:

Firmware

ESP Flash Download Tools v3.4.4

Telnet Client Terminal  (Android) (iOS)

1.  Locate My Computer icon on your desktop, right click on it and select properties. Windows will take to the computer property page and it will look something like this.






2. Now click on Device Manager tab located at left sidebar of property page. Similar window like bellow will pop up.
3. Locate and double click on ‘Ports (COM & LPT)’ .
4. You will see tree list of Connected device with your local system here with its COM port written next to it in bracket.
5. You can also change the port setting (i.e port number, baud rate, data bits, parity, stop bit, flow control, etc) of desired devices by clicking its property in right click menu.