Put in a replacement battery put on charge now it has no display, is there a master reset?

It's possible that the DVR's internal battery is losing charge, causing the clock to lose time. Typically, DVRs use a small lithium battery to power the clock and other internal functions. Over time, this battery can lose its charge or fail entirely, which can cause the clock to lose time or reset completely.
To replace the battery in your Channel Master DVR, you'll need to open up the device and locate the battery. Depending on the model of your DVR, the battery may be easily accessible or it may be hidden inside the device. You may want to refer to the user manual or contact Channel Master for specific instructions on how to replace the battery in your model.
Once you've located the battery, you can replace it with a new one of the same type. Lithium coin batteries are a common type used in electronics, so you should be able to find a suitable replacement at most electronics stores. After replacing the battery, you may need to reset the clock and other settings on your DVR.

backup all data first.
fully charge phone.
Hard Reset

1. Shut down the device
   • Press and hold the End key, tap Power Off, and then tap OK
2. Remove SIM card
   • Remove the battery cover, the battery, and then remove the SIM card. Replace the battery and battery cover.
3. Three-key combination
   • Press and hold the Volume Down key, Send Key, and then End Key in succession. Make sure that all three are being pressed simultaneously and that the End Key is pressed last
4. When the graphic is displayed, press the Menu key to begin factory reset

problem might be with battery do u use the same charger which has come with the phone, put your phone in charging and do master reset

please see the next steps and fix it. God bless you

Drained/dead battery

Plug your iPhone into your computer or wall adapter to charge. If it does not charge when connected to either of these, you probably have a dead battery. The battery will need to be replaced with a new one.

Bad display

It is possible that it appears nothing is happening because the display is bad. If the iPhone sounds like it is working properly but nothing is visible, it is possible the display is bad and must be replaced. Unfortunately, the LCD and glass panel are fused together, and must be replaced as one unit.

Bad logic board

If nothing else works, your logic board is probably bad and needs to be replaced.

Even though the batteries look the same and will fit does not mean they are compatible. I just saw this again at my cell shop today. My razor uses a BR 50. This guys razor needed a BK-70. A BR-50 my partner put in fit, but gave the same message. Your eyes do not deceive you. Make sure the battery model is the same and you are in business. Motorolla batteries have nice big model numbers. I don't have to put my specs on to read it! Happy charging :)

The backup battery is located inside the phone and canno be replaced by normal methods. the phone needs be disassembled and the battery are solded on the board.

the lifetime of these bateries are very high, maybe 5 or more years, and the charge occurs every time when you charge the phone.

Try to leave your phone charging for more than 3 hours, and if the battery dont charge, try a master reset on it.

If ater all, the battery dont charge, maybe you make some mistake or shorted some circuit. Take apart your phone again and re-check all the steps to reassembly.

Good luck

You'll wanna ensure your phone is totally charged. Also, let it completely drain before putting back on the charger. This will help with the charging memory.
As for the phone. Do a master reset: to do a "Master Reset". I went to "Settings," "Other Settings," "Initial Setup," "Master Reset" and put in the security code. "1234" is the security code if you have not reset yours.

It'll get the phone back to as you got out of the box, day one! Your numbers will be fine. You'll notice the ringtone and the wall paper will be the orignals.

I know this will work!

Cheers!

have you fully charged the battery?
Have you tried a reset and a hard reset?

hard reset, push the power button and the reset button at the same time. (All data will be cleared)

Hope this helps.
Ed

well for the reset to work the phone has to fully charged or atleast 75% charged. 1. pull battery out. 2. press and hold center navigation button. 3. put battery back in. 4. press and hold power key( red end key) until keyboard or screen lights up then let go of power key. 5. continue to press center key until a black screen with green lettering comes up that says master reset.

Try "hard"-booting the phone -- pull the battery out, wait at least 30 seconds, then put it back in and try to turn it on. If that doesn't work, try putting it on the charger and see if the screen lights up. If it does work while charging, go to the settings menu and look for "master clear" or "master reset"; this will reset the phone to its factory settings which can often fix problems like these.

If you can't get it to light up at all, then you'll have to contact your cell phone provider for technical support and possibly a warranty replacement.