My wallet balance has decreased.

This guide will recovery your wallet data. It can fix following issues too.

Case : Balance incorrect

Case : Wallet Broken

Case : Error of Wallet launching

PLEASE make sure backup your wallet before below operations.
These operations may break your wallet.
And check your wallet password if it works or not.
(required backup at %APPDATA%\Merci\wallets\wallet.dat)

For Windows Merci core wallet
Firstly please find the shortcut of Merci-Qt. It's on the desktop or the start menu. Copy it to the desktop.


Right click on the short cut, click on Properties and click on Shortcut. Then add --salvagewallet to the end of Target.


Click on OK. The dialogue will be closed.
Now double click on the shortcut. The wallet will launch and reindex blocks.


Open menu %APPDATA%\Merci.
Please be careful and don't remove or change any content under this menu except you are aware of them.


Now the old wallet has been backed up to wallet.~.bak. The wallet is using the new wallet.dat file. It contains all private keys with brand new data.
After the above steps, it's better to remove the shortcut on the desktop in order not to reindex your wallet next time.

I can't send my coins.

This guide will be effected for these following issues.

Case : Transaction too large for fee policy

Cause :
A large number of unspent outputs - caused by a large number of recipients

PLEASE make sure backup your wallet before below operations.
These operations may break your wallet.
And check your wallet password if it works or not.
(required backup at %APPDATA%\Merci\wallets\wallet.dat)

For Windows Merci core wallet


Click on the Settings > Options, click on Wallet tab. Then check activate coin control.


Click on OK. The dialogue will be closed.


Then Press Send. Click on the inputs button.


You can see many unspent inputs of yours.
Please be careful and don't check all of these inputs.


Check some or one inputs enough to send.
After the above steps, send Merci.