2 files changed, 0 insertions, 46 deletions

diff --git a/install.cpp b/install.cpp
index 7fbf5c01f..4848755ab 100644
--- a/install.cpp
+++ b/install.cpp
@@ -178,28 +178,6 @@ static int check_newer_ab_build(ZipArchiveHandle zip) {
     return INSTALL_ERROR;
   }
 
-  // Check for downgrade version.
-  int64_t build_timestamp =
-      android::base::GetIntProperty("ro.build.date.utc", std::numeric_limits<int64_t>::max());
-  int64_t pkg_post_timestamp = 0;
-  // We allow to full update to the same version we are running, in case there
-  // is a problem with the current copy of that version.
-  if (metadata["post-timestamp"].empty() ||
-      !android::base::ParseInt(metadata["post-timestamp"].c_str(), &pkg_post_timestamp) ||
-      pkg_post_timestamp < build_timestamp) {
-    if (metadata["ota-downgrade"] != "yes") {
-      LOG(ERROR) << "Update package is older than the current build, expected a build "
-                    "newer than timestamp "
-                 << build_timestamp << " but package has timestamp " << pkg_post_timestamp
-                 << " and downgrade not allowed.";
-      return INSTALL_ERROR;
-    }
-    if (pkg_pre_build_fingerprint.empty()) {
-      LOG(ERROR) << "Downgrade package must have a pre-build version set, not allowed.";
-      return INSTALL_ERROR;
-    }
-  }
-
   return 0;
 }
 
diff --git a/installcommand.cpp b/installcommand.cpp
index f9978f27b..b306e872f 100644
--- a/installcommand.cpp
+++ b/installcommand.cpp
@@ -159,30 +159,6 @@ static int check_newer_ab_build(ZipWrap* zip)
         return INSTALL_ERROR;
     }
 
-    // Check for downgrade version.
-    int64_t build_timestampt = property_get_int64(
-            "ro.build.date.utc", std::numeric_limits<int64_t>::max());
-    int64_t pkg_post_timespampt = 0;
-    // We allow to full update to the same version we are running, in case there
-    // is a problem with the current copy of that version.
-    if (metadata["post-timestamp"].empty() ||
-        !android::base::ParseInt(metadata["post-timestamp"].c_str(),
-                                 &pkg_post_timespampt) ||
-        pkg_post_timespampt < build_timestampt) {
-        if (metadata["ota-downgrade"] != "yes") {
-            printf("Update package is older than the current build, expected a "
-                 "build newer than timestamp %" PRIu64 " but package has "
-                 "timestamp %" PRIu64 " and downgrade not allowed.\n",
-                 build_timestampt, pkg_post_timespampt);
-            return INSTALL_ERROR;
-        }
-        if (pkg_pre_build_fingerprint.empty()) {
-            printf("Downgrade package must have a pre-build version set, not "
-                 "allowed.\n");
-            return INSTALL_ERROR;
-        }
-    }
-
     return 0;
 }