[duncanduncan]

For flashing failure risks to minimize, you need as much JAVA memory as you can have.
E-sys 3.30.0 comes standard with Java 32 bit, maximizing usable memory to 2Gb (actually less, because runtime uses lots of Mb's as well. Thx Tokenmaster).
Default setting in E-sys 3.30.0 is 1024Mb. You can change it (in esys.bat; thx Shawn)to about 1500Mb. If you set too high, E-sys won't start anymore. Just trial&error.
If you want more usable memory to further reduce memory related flash failures, upgrade Java to 64bit:

1. Download/Install vcredist_x64.exe (see link)
2. Download/Install JRE 8 x64 (see link)
3. Delete JRE folder in c:\EC-apps\ESG\E-Sys\jre
4. Rename just installed JRE 8 x64 folder(c:\Program Files\Java\jre1.8.0_144) to JRE and move to c:\EC-apps\ESG\E-sys\jre.
5. Change memory setting in esys.bat:
:startEsys
:set OPTION_MEMORY=-Xmx3000m (or 2048 or 4000 or whatever)
6. Run E-sys and close E-sys
7. Open last LOG file in c:\Data\Logs\
8. Search for : "Java (max)" Without quotes to check your present max usable memory
9. Use E-sys with decreased flash failure risks

For me this was solution for NBT flash issues!

[cryptocar]

This (x64 Java) doesn't seem to work with TokenMasters launchers.

edit: Working now! Launcher PRO 2.81 and E-Sys 3.30.1


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[Almaretto]

This (x64 Java) doesn't seem to work with TokenMasters launchers.


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It does for me using Pro Launcher.

[shawnsheridan]

Just to clarify, E-Sys Launcher does not use E-Sys.bat file, so changing memory in .bat will have no affect if using Launcher. For Launcher, you can accomplish the same using the Memory: Custom radio button and specifying the amount (e.g. 4096).