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Orange light when I charge my Motorola Rokr E8

I still use my work mobile phone: Motorola Rokr E8 from 6 years ago. Today when I went home and I saw it is off. When I connect it to a wall charger, I saw orange light but I can’t turn it on. The good thing is we have internet. I found the following solution to turn it on.

1. Try entering Bootloader mode by pressing # and *, and then pull the power trigger to turn it on. It tell you that battery is low.
Note: # key is on bottom last right and * key is on bottom last left.
2. Re-connect the charger, pull the power trigger again, it starts normally.
3. The phone is starting charge.


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Install dd-wrt firmware on Linksys E2500 V3

I bricked my old router: WRT320N after upgraded to wrong tomato firmware. I bought E2500 V3 as the replacement. Here are instructions on how to install dd-wrt firmware on it.

1. Flash the Fractal’s Trailed Initial Flash Build (mini-e2500V3.bin)
(1) Log into your computer.
(2) Disconnect all cables and wireless clients.
(3) Do a 30/30/30 reset on router using the small reset button on the bottom, not back, of the unit.
(4) Connect 1 Lan cable to pc doing the flash.
(5) Log into Linkysys Web Interface Firmware Upgrade page at 192.168.1.1 and flash the firmware E2500 V3 Trailed Initial Flash Build: ftp://ftp.basmaf.com/Fractal_Builds/E2500-V3/dd-wrt.v24-23569_NEWD-2_K2.6_mini-e2500V3.bin
(6) Wait 5 minutes to assure flash integrity.
(7) Power cycle by unplugging E2500 for 30 seconds.
(8) Plug E2500 back in and wait about 3 minutes until it finishes booting.
(9) Do a 30/30/30 reset using the small button on the bottom, not back, of the unit on the router.
(10) Wait 3 minutes and log into web interface.
(11) Check for the password page and re-login to change the password.

Note: Hard Reset (aka 30/30/30 reset):
The following procedure will clear out the NVRAM and set dd-wrt back to default values:
(1) With the unit powered on, press and hold the reset button on back of unit for 30 seconds
(2) Without releasing the reset button, unplug the unit and hold reset for another 30 seconds
(3) Plug the unit back in STILL holding the reset button a final 30 seconds (please note that this step can put Asus devices into recovery mode…see note below!)
This procedure should be done BEFORE and AFTER every firmware upgrade/downgrade.
Do not use configuration restore if you change firmware builds (different svn build numbers).

2. After the initial flash – should you want to flash to a build with more features you can use K3.x mega build
(1) Disable all firewalls and security. Disable wireless on your computer and only have the router connected to the flashing computer by the ethernet cable between the two.
(2) Hard reset (30/30/30) prior to flashing. Wait. Check for password page on re-login and change password.
(3)Log into Linkysys Web Interface Firmware Upgrade page at 192.168.1.1 and flash the firmware E2500 K3.x mega build: http://download1.dd-wrt.com/dd-wrtv2/downloads/others/eko/BrainSlayer-V24-preSP2/2014/05-23-2014-r24118/broadcom_K3X/dd-wrt.v24-24118_NEWD-2_K3.x_mega-e2500.bin
(6) Wait 5 minutes to assure flash integrity.
(7) Power cycle by unplugging E2500 for 30 seconds.
(8) Plug E2500 back in and wait about 3 minutes until it finishes booting.
(9) Do a 30/30/30 reset using the small button on the bottom, not back, of the unit on the router.
(10) Wait 3 minutes and log into web interface.
(11) Check for the password page and re-login to change the password.

Everything looks good so far. However, dd-wrt only supports 2.4GHZ for E2500 V3. If you want to be able to use the 5GHz radio, I heard you can flash Fractal’s trailed build followed by Shibby’s build of Tomato (K26RT-N).


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Baby Monitor: Foscam FI9821W

My baby girl was born two weeks ago.  I bought Foscam FI9821W IP camera and set it up as our baby monitor.

Here are the reasons I bought Foscam FI9821W IP camera.
1. Support 720p (1280×720) Display Resolution.
2. Support SD Card so we could record it on SD card.
3. We have android devices that could do monitoring.  My wife has Nexus 7 and I have HTC phone.
4. I could access it even when I am not home.
5. Foscam released new firmware early this year and fixed some bugs. I updated it to the newest firmware.
System Firmware Version: 1.2.1.1
App Firmware Version: 1.1.1.10
Web Version: 2.0.0.0
Plug-in Version: 2.0.0.0

I had a three year old router at home.  It is Linksys WRT320N and runs the following configuration:
Tomato Firmware v1.28.9054 MIPSR2-beta K26 Std
Linux kernel 2.6.22.19 and Broadcom Wireless Driver 5.10.147.0 updates

When I connected FI9821W IP camera wirelessly to my Linksys WRT320N, there are a few things I noticed.
1. FI9821W only supports 2.4 GHz radio band so I can’t run my Linksys WRT320N at 5 GHz.
2. FI9821W frequently locks up and becomes unresponsive to network queries. This is really anonnying. I have to disconnect and reconnect the power of FI9821W to reboot it. I saw people suggested to remove SD card by searching the web. However, it didn’t help.

One thing I could think of is to get better streaming ability at home. After some research, I decided not to upgrade my router but bought D-Link DAP-1525 Wi-Fi Booster. D-Link DAP-1525 is running at Firmware Version: 1.02. One of reason I bought D-Link DAP-1525 is I could setup this solution anywhere. For example, my wife stays at home for a month when our baby was born. I setup streaming with D-Link DAP-1525 and FI9821W in our church so she could watch Sunday sermon lively at home.

Here is my setup. Connect DAP-1525 to my router wirelessly (MediaBridge Mode). Connect FI9821W to DAP-1525 with CAT5e cable.
After one week of usage, I could live with this solution. It has better response than connect to my router directly. I saw FI9821W automatically reboot sometime when I am in baby room. It could be due to its locks up issue. I could live up with it because I don’t have to manually cycling power when it locks up.

I used tinyCam Monitor PRO app for our Android devices. It works great except I can’t get audio working with FI9821W. FOSCAM IP Cam Viewer app released early of this year works with audio.

Updated on July 23, 2014:
After three months of use, my FI9821W is not functioning anymore. It kept rebooting and re-initializing. I went to Foscam store at: 3550 Victoria Park Ave. suite 201
Toronto, Ontario, M2H 2N5 and got the replacement. That’s easy. It comes with latest application firmware.
System Firmware Version 1.2.1.1
App Firmware Version 1.1.1.12

This version of application firmware seems fixed locks up issue because I don’t see it automatically reboots anymore. However, the replacement I got has issue with recording. For some reason, I can’t record it anymore. I am lazy and haven’t gone back to the store yet.

Updated on April 16, 2015
I updated application firmware to 1.1.1.13 and the recording problem is fixed.
Later on I updated application firmware to 1.1.1.14. The firmware upgrade was successful. However, my FI9821W could not obtain an IP with either wireless or wired connection overnight and reset button isn’t working either. I searched internet and found lots people has similar issue that FI9821W v1 broken after firmware upgrade 1.1.1.14. My FI9821W is out of warranty. I contacted Foscam manufacture contact and they provide the following series upgrade instructions:

FI9821W FI9818W Serial Port Upgrading

I ordered CP2102 USB to TTL converter from amazon.
It is shipped from Hong Kong. I soldering wire cable to the mainboard. However, I don’t see boot up information from Tera Term pro when connect CP2102 to my computer. Either my soldering skill is not good enough or mainboard is fired.


Orange light when I charge my Motorola Rokr E8

I still use my work mobile phone: Motorola Rokr E8 from 6 years ago. Today when I went...
article post

Install dd-wrt firmware on Linksys E2500 V3

I bricked my old router: WRT320N after upgraded to wrong tomato firmware. I bought E2500...
article post

Baby Monitor: Foscam FI9821W

My baby girl was born two weeks ago.  I bought Foscam FI9821W IP camera and set it up as...
article post