Gadgets Hack Mobile

Samsung Phones Secret Codes

Perhaps only the geeks would be interested in this but it is good to know that with just a few keystrokes from your phones, you can get your hands into the innards of your device.

Most of these codes are guaranteed to work on any Samsung Android device.


*#0*# — SensorDiagnotics
*#03# — NAND Flash S/N
*#80# — Touchscreen noise test (warning do not press power button)
*#251# — Wakelock ON
*#250# — Wakelock OFF
*#350# — Reboot
*#526# — WLAN Engineering Mode
*#528# — WLAN Engineering Mode
*#745# — RIL Dump Menu
*#746# — Debug Dump Menu
*#0011# — ServiceMode
*#0228# — Battery status
*#0283# — Audio packet loopback test
*#0289# — Audio/speaker test (Melody Test Mode)
*#0514# — SysDump (System Dumps, logs, etc)
*#0588# — Proximity Sensor test
*#0589# — Light Sensor Test Mode
*#0673# — Audio/speaker test (same as 0289)
*#0782# — Real Time Clock Test
*#0842# — Vibration Test
*#1575# — GPS Control Menu
*#2263# — RF Band Selection
*#2663# — Touchscreen FW and version
*#2664# — HW touchscreen test
*#3264# — RAM CHECK (Version number)
*#4327# — HDCP INFO (True/ false)
*#7284# — Phone Utility (USB Settings)
*#7353# — Self Test (Menu of 12 tests to use)
*#7594# — Factory mode Enable shutdown on long press
*#8888# — Service Mode (Read FTA hw version)
*#9900# — System Dump Mode
*#9999# — SW Versions (AP, CP, CSC, FTA SW)
*#5238973# — LCD TYPE
*#232331# — BT test
*#232337# — BT address
*#232338# — WLAN MAC address & PS mode
*#232339# — WLAN Engineering Mode test (TX & RX modes) (same 526)
*#272886# — Auto Answer Selection
*#3214789# — GCF Mode Status
*#8736364# — OTA Update Menu
*#7412365# — Camera Firmware Standard (Front/Rear Cam FW)
*#7465625# — Personalization (Lock Status settings)
*#22558463# — Reset Total Call Time
*#12580*369# — Main Version (AP, CP, CSC, RF cal, HW Rev) (similar to 9999)
*#197328640# Service Mode
*#3282*727336*# — System and Storage Information (Data Usage Status)
*#273283*255*3282*# — Adjust/Fill Message, Contact, Call Log, etc Limits
*#273283*255*663282*# — Data Create SD Card
*#7328735824# — LOT ID
*#7780# — Factory Reset (WARNING)
*2767*3855# — Full Factory Reset ( Gives NO WARNING)


Thinking Of Buying A WiFi Router? Read This First!

Buying the right routers has never been more difficult. Be warned! Wifi routers are not usually just a buy, plug and play affair.

Businesses often spend thousands of dollars to hire wireless networking professionals to perform site surveys to determine the best equipment and means to deploy a wireless network. However, our focus – the home and small businesses – do not have the resources to hire such and can feel frustrated about purchasing, setting up and maintaining a wireless router and their own wireless networks! What probably make it even more frustrating to these class of people are the barrage of technical jargon being bandied about by the manufacturers of these routers, usually more from marketing hypes than necessity.

The question now is, How do you determine the features that matter and those that do not when making your purchase? Bands, Standards, Range, etc – are all these important considerations when shopping for a wireless router? What exactly are the important features to look out for when shopping for a router?

Care to know? Then read on.


It is a tricky time to be in the market for a new wireless router. However, one key consideration before purchasing a wireless router is to determine how fast it transmits data. The speed of data transfer for any router is normally dependent on the standard.

802.11a An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz.

802.11b An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps over the harmless 2.4GHz radio frequency.

802.11g An IEEE wireless networking standard that offers transmission at relatively short distances at a maximum data transfer rate of 54Mbps.

The above standards have all been superceeded and are not worth considering.

802.11n An IEEE wireless networking standard that offers transmission at a maximum data transfer rate of up to 450Mbps. Most popular standard at the moment and highly recommended

802.11ac The new kid on the block. Coming five years after the 802.11n, this standard promises data transmission at a maximum rate of 1.3Gbps. Caution here. All the horsepower the 802.11ac routers can offer won’t matter if the clients connecting to the devices do not have support to interface with these blazing fast speeds.

The fastest current 802.11n Wi-Fi connections max out at around 150Mbps with one antenna, 300Mbps with two and 450Mbps with three antennas. 802.11ac connections will be roughly three times faster – so that’s 450Mbps, 900Mbps and 1.3Gbps respectively. Note that these figures are theoretical maximums, the best you may likely get for the 802.11ac would be in the region of 800Mbps.


Signal interference is one of the biggest culprits that might be at work if your Wi-Fi is weak. Walls and physical obstructions block your signal, so do signals emitted by any electromagnetic household object like your microwave oven, cordless phones, bluetooth devices and even fluorescent lights!

The range of your Wi-Fi signals is normally dependent on the Wi-Fi standard. Using a  router with 802.11b and 802.11g can get you as far as 95m while 802.11n can get you twice that. This range is only obtainable outdoors where there are no obstructions. Real life usage indoors will vary greatly.

Single Band or Dual Band?

While researching routers, you will inevitably stumble across the term “bands.” The 2.4 and 5 GHz bands are the frequencies in which wireless communications operate. 802.11 B and G devices use the 2.4 GHz band, while 802.11N can use either the 2.4 GHz or 5 GHz band. The 5 GHz band is less crowded then the 2.4 GHz band; less equipment runs on 5 GHz. That’s why it’s better equipped for throughput-intensive work within your home network such as gaming and file streaming. You will also get better internal network performance. These routers are ideal for the wireless gadget heavy home because you can connect gadgets that you use primarily for surfing such as a smartphone or tablet to the 2.4 GHz band and reserve the 5 GHz band for more demanding applications like devices that stream video and music or for gaming.

802.11ac will be purely 5GHz. It differs from 802.11n

  • Do you have multiple family members streaming video, or playing games online at the same time?
  • Is streaming high-definition video a must?
  • Do you plan to stream lots of content to an iPad?
  • Are you moving high volumes of data for your home office.

If any of these apply, then you’re a good candidate for a dual-band router. If not, you can probably get away with a cheaper single band router. Well, that’s the genius of dual-band routers; they allow each device to connect simultaneously, using its preferred band. The weakest link doesn’t have to slow the other devices down. The one downside of 5 GHz is that it does not sustain signal at greater distances as well as the 2.4 GHz band. So, if you are looking for a dual-band router to take advantage of the 5 GHz bandwidth—you’ll want to factor in distance when placing the router in your home or office.

Please note that 802.11ac won’t crystallize into a bona fide standard until sometime next year


You’ll definitely want to make sure the router supports the latest WPA2 security rather than just WPA or, even worse, WEP. Most current routers support WPA2, but free routers from an ISP can sometimes be really outdated. If you’re building a wired network with clients that have gigabit ethernet adapters, also look for a router that supports that fast gigabit transfer speed. Also make sure the router supports Wireless-N (802.11n) for fastest transfer speeds; Wireless-N is backwards compatible with Wireless-G (802.11g) and Wireless-B (802.11b) devices, so your older computers and gadgets will still be able to connect to it.

And for The Geeks …

Do You Like to Tinker? Consider Custom Router Firmware If you’d like to hack your router for more features and customization with free, open-source firmware like Tomato or DD-WRT, be sure to check those site’s supported routers before going shopping. Some routers—like Buffalo’s Nfiniti G300NH—actually ship with DD-WRT pre-installed.

USB Ports

If you’d like to create a shared network drive, some routers enable you to plug in a USB hard drive to the router and share that drive. It’s a useful feature, but can be very slow and/or inconvenient (forcing you to use a FTP or HTTP server to access the drive, for example). If you don’t have a network attached storage (NAS) device, however, and don’t mind the performance compromise, look for this feature in your next router.

PS: You must ensure your wireless devices support whatever router you intend to buy. There is absolutely no benefit in switching to a higher grade router when your device can not take advantage of it.

Your Wi-Fi network is only as fast as the standard of the slowest device connected to it. If you connect a 802.11g device to a 802.11n network, the speed of your network will be limited to that of the slower standard, 802.11g.

Gadgets Hack Mobile

This Item Cannot Be Installed In Your Device’s Country

So you tried to download an app from Google Play Market and you got the message “This Item Cannot Be Installed In Your Device’s Country”. Or you probably saw an advertised android app and you just can not seem to find it in the Google Play Market.

This user experience  is quite frequent and it is not restricted to the Android platform. Apple users in Nigeria also have similar stories to share about the Apple app store.

What exactly is the problem here?

Not every app is available for every device or geographical location for varied reasons, bothering on commercial, legal or compatibility reasons. Developers have the ability to target applications to specific mobile devices based on screen size, mobile service provider, or location.

For app restriction based on compatibility reasons, you may do well to let sleeping dogs lie. However, for app restrictions based on geographical location, there is a hack!

Basically, what Google does is to set a filter on Google Play restricting access to certain apps based on the Internet IP you are browsing with. Quite a number of choice apps are not made available to Nigerian residents this way. In fact, most of these select apps are only available to you if you live within the United States.

One quick solution is for you to change the IP address of your Internet service / network provider to the range allocated to the US, that way you can fake that the download is been made from the US. But how easy is this process?

Enter the Android Market Unlocker.

Once installed, the app works a bit like a proxy. It works by enabling proxy access to make your phone identify as a device in the country with the app store you like to access.

NOTE : Your device MUST be rooted before performing this procedure

  • Naturally, you would not find this app in the Google Play store, it has long been yanked off. Click here to download it from the “Geek” servers.
  • Sideload the app to your  device and install.
  • Stop the Google Play Market app from your device settings.
  • Launch the Market Unlocker application
  • Click on the Settings List tab
  • Select any of the listed networks. I chose the first one, T-Mobile
  • Press down on it for about 2 seconds, a menu option will pop up
  • Select Fake This Provider Now.

Voila! Google Play will now recognize your device as being used from within the USA

You can now easily download all the restricted apps.

Life is Good!


1. You will need to repeat this procedure everytime you reboot your device.

2. To confirm that you can access the US Google Play Market, search for any of these US-only apps; kindle or spotify. If you can not find them, you probably were not successful. Reboot your device and repeat the procedure.


Start Your Own “Nairaland” For FREE!!! is probably the most visited forum in Nigeria. Interested in starting up yours? You just might be the one to upseat Nairaland, and for free too!

Probably the best platform you can start your forum on is Simple Machines Forum (SMF). It is free and very secured. But most importantly, the process involved in setting one up takes just a few minutes. The steps to take are itemised below;

1. Order for a FREE web hosting plan from You may use an existing domain name with it or you may place an order for one.
2. Log in to your CPanel. If your chosen domain name is, say,, then your cpanel address is Your login details would have been provided in a mail you received when your hosting account with was activated.
3. You have a choice of an automated installation of SMF via Fantastico in your cPanel or doing it manually. You will find Fantastico under Software/Services in your Cpanel. Just Click on it and do a quick search for SMF. Installation takes a few minutes.

4. However, the best option to take would be to download the full installation zip file from, that way, you would be getting the latest version of the installation file, SMF 2.0
5. Create a database via your cpanel. Check under Databases for MySQL Database.
6. Upload the downloaded zip file to your web hosting space using the File Manager in your CPanel. Ensure the file is uploaded to the public_html folder , then extract the content there.
7. Type the following url in your browser;
Username and Password are your CPanel login details

In the Screen above, select a username and password for your admin login screen.

With this, the installation is completed. A sample installation of SMF forum can be viewed at

PS: If you get stuck or you will rather not attempt the installation, subscription to web hosting qualifies you for a free installation. Submit your request at



The Google+ Project – Free Invites

Google has unveiled its new social networking tool Google Plus (Google+) to beat its close rival Facebook. With the Google+ project, the search engine giant is planning to grab the search engine market, which is controlled by Facebook with nearly 700 million users.

Even Though the Google Plus project is in limited field trial, quite a number of users have been able to experience the features of the new Google+ social network. In our search over the Internet, we have noticed mixed reviews from various technology blogs and website editors who tested the Google+ platform. Some of them gave 100 percent marks for Google+, meanwhile some others reported it as a “complicated” platform.

As of today, Google seems to have stopped honouring any new invites to test the Google+ platform but for those that are still keen on testing the platform, all hope is not lost.

Anyone interested in giving this new facebook “killer” a spin should post a comment in the comment section with a GMail email address. Emphasis on Gmail email address. You will receive two mails, one from Google+ and another from Wale Falade (Google+). In the mail from Wale Falade (Google+), click on “View or comment on Wale Falade’s post”, then go with the flow, you will eventually find yourself in the Google+ project page.

PS: Do not know how long Google will continue honouring these invites, so jump on board as quickly as you can!