[sensi81]

This solution has one culprit, TTS is not working afterwards.

Yeah after check TTS in my reader it also doesn`t work . I again dissamble reader and connect serial monitor:

980 mixer_init() out
global_config::ttslanguage=<pl_agnieszka>
lingwarepath /mnt/ext1/system/tts/pl_agnieszka/
mainlingware vox_pl_agnieszka22i
voxdb /mnt/ext1/system/tts/pl_agnieszka/vox/vox_pl_agnieszka22i
voicelib /mnt/ext1/system/tts/pl_agnieszka/libvoice.so
 ######## IVONA preload
Try load /mnt/ext1/system/tts/pl_agnieszka/libtts_engine.so
reading /mnt/ext1/system/tts/pl_agnieszka/libtts_engine.so
File size 2055456
reading /mnt/ext1/system/tts/pl_agnieszka/libtts_engine.so.sig
File size 64
Checking key /ebrmain/share/ssl/pubkey3.rsa
!EVP_DigestVerifyFinal
807047168:error:0407006A:rsa routines:RSA_padding_check_PKCS1_type_1:block type is not 01:rsa_pk1.c:103:
807047168:error:04067072:rsa routines:RSA_EAY_PUBLIC_DECRYPT:padding check failed:rsa_eay.c:705:
Checking key /ebrmain/share/ssl/pubkey2.rsa
Ok /mnt/ext1/system/tts/pl_agnieszka/libtts_engine.so loading..
Load library. Init procs.
Found magic with offset 390
Failed to create a TTS instance: Invalid certificate line

I think something is wrong with pubkey3.rsa key. That the private key used to sign does not correspond to the public key used to verify. Correct me if I am wrong.