Wednesday, March 9, 2016

ESP8266 ESP-01 Flash Firmware

I bought ESP8266 ESP-01 from Lelong.my. It already flashed with AI Thinker firmware. I decided to use NodeMCU firmware. So here's how I do it.

1) Download NodeMCU Flasher (https://github.com/nodemcu/nodemcu-flasher/tree/master/Win32/Release).
2) Download NodeMCU Firmware (https://github.com/nodemcu/nodemcu-firmware/releases). I use nodemcu_float_0.9.6-dev_20150704.bin.
3) Run ESP8266Flasher.exe. Follow instruction below:-

Select The Right COM Port.

Select Firmware File.

Firmware File Selected.

Select The Right Baud Rate and Flash Size. 

Thursday, February 18, 2016

Dead Lenovo A850, Not Detected When Connected To PC

I have done FORMAT + DOWNLOAD A850 ROW rom to my Lenovo A850. But sadly, it is the wrong firmware. Supposed I need to select CN rom to my phone. After flashed ROW rom, the phone is dead = not detected by PC when connected with USB cable, no boot up.

So, I googled for solution, and found out with this link.
1) http://forum.gsmhosting.com/vbb/f672/lenovo-a850-dead-boot-how-easy-jtag-1868940/index2.html
2) http://forum.gsmhosting.com/vbb/f672/lenovo-a850-dead-boot-how-easy-jtag-1868940/index2.html#post11469369

So, my solution based on those links is:-
1) Power off phone.
2) Press VOLUME UP + VOLUME DOWN while connecting USB cable to PC and phone.

Now the phone is detected by PC and I can flash another rom then.

Friday, February 5, 2016

GYM8511ML UV Sensor Connection To Arduino Nano

- This sensor is to detect 280-390nm light.
- I bought my sensor from E-Bay (http://www.ebay.com/itm/400936528899?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT), seller information "alice1101983".
- Nothing much info from seller's page. Googled and downloaded sample code from "https://learn.sparkfun.com/tutorials/ml8511-uv-sensor-hookup-guide".
- My connection shematic as below:-
- Hope this information helps.

Sunday, November 29, 2015

Lenovo A850 CN ROM (With Success)

- Before this, I managed to flash A850 ROW stock rom.
- Then I got second A850 phone to flash. I used ROW stock rom but failed. I forgot to check the ROM version before flashing it. So now, the second Lenovo A850 is bricked.
- After searching for a while, I managed to search and download CN ROM.
- I got the info from (https://www.china-devices.com/topic/1910-lenovo-a850-mt6582-bricked/?page=2). A user on that forum said he managed to unbrick his Lenovo A850 using that ROM download from (http://www.needrom.com/download/feb-2014-s203-flashtool-ready/). So, I downloaded the ROM from the NeedROM link, using the Flash Tool compressed in the same archive, I try flash my Lenovo A850 with success.
- Now my Android Version is 4.2.2, Baseband version A850.V13,2013/09/06 17:49, build number A850_S203_140208.
- After flashing the ROM, there's a problem with Root. The ROM already included LuckyPatcher and Framaroot. But Root access is unavailable. So, I use KingRoot to obtain Root access.
- There's a problem with Google Play Services in this A850 S203 CN ROM. You can't use WhatsApp, Youtube, etc..
- To repair this problem with Google Play Services on Lenovo A850, firstly I downloaded latest LuckyPatcher from (http://lucky-patcher.netbew.com/). Current version is Lucky Patcher v5.8.5.apk. Then, download latest Modded Google Play Store, also in that site. Current version is Google Play Store v6.0.0 (Modded).apk.
- Ohh, I almost forgot. To use LuckyPatcher, you will also need BusyBox. I just download and install BusyBox Installer by JRummy from Google Play.
- Install LuckyPatcher, then run it. Use it to install Google Play Store v6.0.0(Modded).apk as system app. Reboot the phone.
- Now you can install Youtube to test if there is any more problem with Google Play Services.

Friday, October 23, 2015

Lenovo A850 Root (With Success)

1. Download KingRoot APK and copy to your internal or external storageof your phone.
2. Install KingRoot APK and launch KingRoot app.
3. Wait a few seconds for root check and click Start Root. Rooted!
4. I've tried on two different Lenovo A850 phone and it works!
5. I also suggest and recommend you to try their Purify app and Bloatware Remove (tool in the Purity app).

Lenovo A850 Flash To Stock ROM and Repair IMEI (Change IMEI)

Flashing Stock ROM to Lenovo A850.
1. Download SP Flash Tool (Smart Phone Flash Tool) from AndroidXDA.
2. Download Lenovo A850 Stock Rom from AndroidXDA. Link 1, Link 2.
3. When you download "Lenovo_A850_4.2_(by_xdafirmware.com).zip" from AndroidXDA, it already included Flash Tool (SP Flash Tool) version 3.1344. You can use it OR download later version, no problem.

4. Extract "Lenovo_A850_4.2_(by_xdafirmware.com).zip".
5. Goto extracted folder, open folder "Driver", install one for your PC.

6. Restart PC.
7. Power-off your phone. Connect one end of the USB cable to PC. And for the other one, when you want to connect to the phone, connect the USB cable to phone WHILE HOLDING VOLUME UP BUTTON to enter phone factory mode. If you hold the volume down button when connecting to PC, then your phone will enter meta mode.
8. Wait until driver installation is finished.
9. Goto folder "Flash Tool" and run Flash_tool.exe.

10. Select scatter-loading button and select mt6582_android_scatter.txt.

11. Checked the checkbox for DA DL All With Check Sum. This one important. I have try download without checked this checkbox, and I got error message on Lenovo start up logo. Press the Download button after you checked the checkbox.

12. Wait until downloading finished until there's Download OK green circle message appear. Power-on the phone. Wait until it go to start screen.

Repair IMEI (Unknown/Null IMEI) After Flashing Stock ROM.
1. First, open the back cover of your phone, write down the IMEI on a piece of paper.
2. After you have successfully download/flash the stock ROM for Lenovo A850, open Google Play app.
3. Search and download/install Mobileuncle Tools.
4. Launch the Mobileuncle Tools app.
5. Goto Engineer Mode --> Engineer Mode (MTK) --> Connectivity --> CDS Information --> Radio Information --> Phone 1.
6. Write AT+EGMR=1,7,"IMEI1" and press SEND AT COMMAND button.
7. Now push the Back button of your phone, select Phone 2.
8. Now write AT+EGMR=1,10,"IMEI2" and press SEND AT COMMAND button.
9. Surely you will confuse a little bit about IMEI1 and IMEI2. For IMEI1, enter the IMEI that you found at the back of your phone. For IMEI2, you plus 8 for three last number of IMEI1. For example, last IMEI if 520. Then it will be 520+8=528. If 327, then 327+8=335. More example, IMEI1 is 86415432123 (just a random number). Then, IMEI2 will be 123+8=131, IMEI2 = 86415432131.
10. Thanks to Al-Qamar tutorial for this, I've follow the tutorial with success.

Monday, August 24, 2015

Recommended Torrent Seed Box, Just Seed It

- Link: https://justseed.it/
- Cheap enough for me. You should try.


Based on current foreign exchange rate (24/8/2015) using google.
1 USD = RM 4.25

- 4 GB, USD 0.19 = RM 0.81
- 64 GB, USD 1.09 = RM 4.64
- 128 GB, USD 2.05 = RM 8.72
- 256 GB, USD 3.90 = RM 16.59
- 512 GB, USD 7.10 = RM 30.19
- 1 TB, USD 9.99 = RM 42.49