upgrade path from 11.5.10.2 (DB10.2.0.4+ASM10.2.0.4(Non-Rac,only ASM)) to 12.2.3(DB11.2.0.4+ASM)

Hi Expert

Customer's instance is 11.5.10.2 (DB10.2.0.4+ASM10.2.0.4(Non-Rac,only ASM)).

Customer is planing to upgrade to12.2.3(DB11.2.0.4+ASM).

Qustion1:

Should  ASM10.2.0.4 be upgraded if customer upgraded to 12.2.3(DB11.2.0.4)

Is ASM10.2.0.4 still certified with 12.2.3?

Question2

Does anyone knows how to upgrade 11.5.10.2 (DB10.2.0.4+ASM10.2.0.4(Non-Rac,only ASM)) to 12.2.3(DB11.2.0.4+ASM)?

if ASM have to upgrade to 11.1, Does the below way ok?

1. Upgrade EBS 11.5.10.2 to EBS12.2.3
2. Upgrade ASM 10.2.0.4 to 11

Reference:

How To Upgrade ASM from 10.2 to 11.1 (single Instance configuration / Non-RAC)? (Doc ID 736121.1)

Please advise.

Best Regards

Liying