Developer version update: 2014-06-06
LeWa_TCL_S960T_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_TCL_S960_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_XIAOMI_HM1_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_XIAOMI_HM2W_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_YUSUN_LA2T_JB5_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZOPO_C2_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_N909_JB_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_U988S_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_V889D_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_V889S_JB_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_V967S_JB2_ROM_2014-06-06
Developer version update: 2014-06-06
LeWa_ZTE_V970_JB_ROM_2014-06-06
I don’t know any other ROM sites. You can write new imei with MTK droid tools. Check your phone box, may be imei is written on it.
Use the same method you’ve used before with SP Flash Tool. Flash your backup rom again.
happy to hear that you have resuscitated your phone 
reinstalling rom after erasing the data/cache may help.
you can check http://www.needrom.com for the roms or try google. unfortunately, it is not easy or impossible to find support and roms for less popular chinese phones.