[Huawei P9 Lite ROMs, Kernels, Recoveries, & Other ] k1ll3r8e:
Heyho,

hmm... The build number is not that important in the "folder" title, so far i could check, TWRP takes just the infos stored in the "build.prop" not the one in the "hw/eu" or "vodafone/de" folder... The one under system... And based on the localisation on huawei devices this is a normal behaviour, because the "real ID" is stored in the "cust" mount.

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But back to ur main problem, which exact build u tried to install and which exact changes you have done to the oeminfo?

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Because my thoughts are, that u maybe tried to flash a version which doesn't match with the build ID u try to install. For example, if u want install an WAS-LX1AC432B123 build. Ur oeminfo entry (build) MUST be WAS-LX1AC432B123 or a lower version, BUT, it must be in the "build range"... The range which can be overridden from the rom u have, u can find in the "verlist.img" inside the update.app, the list should look like this. (taken from L31C432B130)

VNS-L31C900B142-log
VNS-L31C900B142
VNS-L31C900B141-log
VNS-L31C900B141
VNS-L31C900B140-log
VNS-L31C900B140
VNS-L31C900B139-log
VNS-L31C900B139
VNS-L31C900B135-log
VNS-L31C900B135
VNS-L31C900B132-log
VNS-L31C900B132
VNS-L31C900B130-log
VNS-L31C900B130
VNS-L31C900B120-log
VNS-L31C900B120
VNS-L31C900B116-log
VNS-L31C900B116
VNS-L31C900B112-log
VNS-L31C900B112
VNS-L31C900B110-log
VNS-L31C900B110
VNS-L31C900B104-log
VNS-L31C900B104
VNS-L31C900B103-log
VNS-L31C900B103
VNS-L31C900B101-log
VNS-L31C900B101
VNS-L31C900B100-log
VNS-L31C900B100
VNS-L31C900B063-log
VNS-L31C900B063
VNS-L31C900B062-log
VNS-L31C900B062
VNS-L31C900B058SP03-log
VNS-L31C900B058SP03
VNS-L31C900B058SP02-log
VNS-L31C900B058SP02
VNS-L31C900B058SP01-log
VNS-L31C900B058SP01
VNS-C999B001
VNS-L31C900B064
VNS-L31C900B061
VNS-L31C900B060
VNS-L31C900B059
VNS-L31C900B058-log
VNS-L31C900B058
VNS-L31C900B057-log
VNS-L31C900B057
VNS-L31C900B056-log
VNS-L31C900B056
VNS-L31C900B055-log
VNS-L31C900B055
VNS-L31C900B054-log
VNS-L31C900B054
VNS-L31C900B053-log
VNS-L31C900B053
VNS-L31C900B052-log
VNS-L31C900B052
VNS-L31C900B051-log
VNS-L31C900B051
VNS-L31C900B050-log
VNS-L31C900B050
VNS-L31C900B047-log
VNS-L31C900B047
VNS-L31C900B045-log
VNS-L31C900B045
VNS-L31C900B044-log
VNS-L31C900B044
VNS-L31C900B043-log
VNS-L31C900B043
VNS-L31C900B042-log
VNS-L31C900B042
VNS-L31C900B041-log
VNS-L31C900B041
VNS-L31C900B040-log
VNS-L31C900B040
VNS-L31C900B039-log
VNS-L31C900B039
VNS-L31C900B038-log
VNS-L31C900B038
VNS-L31C900B037-log
VNS-L31C900B037
VNS-L31C900B035-log
VNS-L31C900B035
VNS-L31C900B034-log
VNS-L31C900B034
VNS-L31C900B032-log
VNS-L31C900B032
VNS-L31C900B031-log
VNS-L31C900B031
VNS-L31C900B030-log
VNS-L31C900B030
VNS-L31C900B029-log
VNS-L31C900B029
VNS-L31C900B027-log
VNS-L31C900B027
VNS-L31C900B026-log
VNS-L31C900B026
VNS-L31C900B025-log
VNS-L31C900B025
VNS-L31C900B024-log
VNS-L31C900B024
VNS-L31C900B023-log
VNS-L31C900B023
VNS-L31C900B022-log
VNS-L31C900B022
VNS-L31C900B021-log
VNS-L31C900B021
VNS-L31C900B020-log
VNS-L31C900B020
VNS-L31C900B019-log
VNS-L31C900B019
VNS-L31C900B018-log
VNS-L31C900B018
VNS-L31C900B017-log
VNS-L31C900B017
VNS-L31C900B016-log
VNS-L31C900B016
VNS-L31C900B015-log
VNS-L31C900B015
VNS-L31C900B014-log
VNS-L31C900B014
VNS-L31C900B013-log
VNS-L31C900B013
VNS-L31C900B012-log
VNS-L31C900B012
VNS-L31C900B011-log
VNS-L31C900B011
VNS-L31C900B010-log
VNS-L31C900B010
VNS-L31C900B009-log
VNS-L31C900B009
VNS-L31C900B008-log
VNS-L31C900B008
VNS-L31C900B007-log
VNS-L31C900B007
VNS-L31C900B006-log
VNS-L31C900B006
VNS-L31C900B005-log
VNS-L31C900B005
VNS-L31C900B004-log
VNS-L31C900B004
VNS-L31C900B003-log
VNS-L31C900B003
VNS-L31C900B002-log
VNS-L31C900B002
VNS-L31C900B001-log
VNS-L31C900B001
VNS-L31C900B001
VNS-C900B001-log
VNS-C900B001
BalongC50B311-log
BalongC50B311

Then the update should normally install fine without any error.

Hope i could help u ;)

Regards,

Sebastian